{"id":502,"date":"2024-05-15T03:00:03","date_gmt":"2024-05-15T03:00:03","guid":{"rendered":"https:\/\/techris.in\/?p=502"},"modified":"2024-06-20T22:39:22","modified_gmt":"2024-06-20T22:39:22","slug":"how-to-solve-hunks-failed-saving-rejects-to-file","status":"publish","type":"post","link":"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html","title":{"rendered":"How to solve hunks FAILED &#8212; saving rejects to file"},"content":{"rendered":"<p>During the <a href=\"https:\/\/techris.in\/apps\/how-to-convert-python-code-to-mobile-app-for-free.html\">building of android app from python code<\/a> you may come across this error<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>RAN: \/usr\/bin\/patch -t -d \/home\/gk\/.local\/share\/python-for-android\/build\/other_builds\/opencv\/arm64-v8a__ndk_target_24\/opencv -p1 -i \/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches\/p4a_build.patch\r\nSTDOUT:\r\npatching file cmake\/OpenCVDetectPython.cmake\r\nHunk #1 FAILED at 175.\r\nHunk #2 FAILED at 244.\r\n2 out of 2 hunks FAILED -- saving rejects to file cmake\/OpenCVDetectPython.cmake.rej\r\npatching file modules\/python\/CMakeLists.txt<\/code><\/pre>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_67_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6674b6281ff65\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6674b6281ff65\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#what-does-the-error-hunk-failed-means\" title=\"What does the error Hunk FAILED means\">What does the error Hunk FAILED means<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#full-error-log-of-hunk-failed\" title=\"Full error log of hunk failed\">Full error log of hunk failed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#resolve-hunk-failed-error\" title=\"Resolve Hunk failed error\">Resolve Hunk failed error<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#licenses\" title=\"Licenses\">Licenses<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#p4a-recipe\" title=\"p4a recipe\">p4a recipe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/techris.in\/python\/how-to-solve-hunks-failed-saving-rejects-to-file.html\/#opencv\" title=\"OpenCV\">OpenCV<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"what-does-the-error-hunk-failed-means\"><\/span>What does the error Hunk FAILED means<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This means that the <a href=\"https:\/\/techris.in\/python\/kivymd-recipe-for-python-for-android-and-buildozer.html\">patch<\/a> is unable to find the correct data entry in the file mentioned. Lets see that in detail. Here we are trying to use the latest opencv 4.9.0 in our build<\/p>\n<figure id=\"attachment_387\" aria-describedby=\"caption-attachment-387\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><a href=\"\/contact-us\/\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/techris.in\/wp-content\/uploads\/2024\/04\/need-help-python-app-development.jpg\" alt=\"Do you need help in python app development\" width=\"800\" height=\"450\" class=\"size-full wp-image-387\" srcset=\"https:\/\/techris.in\/wp-content\/uploads\/2024\/04\/need-help-python-app-development.jpg 800w, https:\/\/techris.in\/wp-content\/uploads\/2024\/04\/need-help-python-app-development-300x169.jpg 300w, https:\/\/techris.in\/wp-content\/uploads\/2024\/04\/need-help-python-app-development-768x432.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption id=\"caption-attachment-387\" class=\"wp-caption-text\">Do you need help in python app development<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"full-error-log-of-hunk-failed\"><\/span>Full error log of hunk failed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This is the error log<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-plain\" data-lang=\"Plain Text\"><code>[DEBUG]: -&gt; running patch -t -d \/home\/gk\/.local\/share\/python-for-android\/build\/other_builds\/opencv\/arm64-v8a__ndk_target_24\/opencv -p1 -i \/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches\/p4a_build.patch\r\n[DEBUG]: patching file cmake\/OpenCVDetectPython.cmake\r\n[DEBUG]: Hunk #1 FAILED at 175.\r\n[DEBUG]: Hunk #2 FAILED at 244.\r\n[DEBUG]: 2 out of 2 hunks FAILED -- saving rejects to file cmake\/OpenCVDetectPython.cmake.rej\r\n[DEBUG]: patching file modules\/python\/CMakeLists.txt\r\nException in thread background thread for pid 137381:\r\nTraceback (most recent call last):\r\nFile \"\/usr\/lib\/python3.11\/threading.py\", line 1045, in _bootstrap_inner\r\nself.run()\r\nFile \"\/usr\/lib\/python3.11\/threading.py\", line 982, in run\r\nself._target(*self._args, **self._kwargs)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 1641, in wrap\r\nfn(*rgs, **kwargs)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 2569, in background_thread\r\nhandle_exit_code(exit_code)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 2269, in fn\r\nreturn self.command.handle_command_exit_code(exit_code)\r\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 869, in handle_command_exit_code\r\nraise exc\r\nsh.ErrorReturnCode_1:\r\n\r\nRAN: \/usr\/bin\/patch -t -d \/home\/gk\/.local\/share\/python-for-android\/build\/other_builds\/opencv\/arm64-v8a__ndk_target_24\/opencv -p1 -i \/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches\/p4a_build.patch\r\n\r\nSTDOUT:\r\npatching file cmake\/OpenCVDetectPython.cmake\r\nHunk #1 FAILED at 175.\r\nHunk #2 FAILED at 244.\r\n2 out of 2 hunks FAILED -- saving rejects to file cmake\/OpenCVDetectPython.cmake.rej\r\npatching file modules\/python\/CMakeLists.txt\r\n\r\n\r\nSTDERR:\r\n\r\n[INFO]: STDOUT:\r\npatching file cmake\/OpenCVDetectPython.cmake\r\nHunk #1 FAILED at 175.\r\nHunk #2 FAILED at 244.\r\n2 out of 2 hunks FAILED -- saving rejects to file cmake\/OpenCVDetectPython.cmake.rej\r\npatching file modules\/python\/CMakeLists.txt\r\n[INFO]: STDERR:\r\n\r\nTraceback (most recent call last):\r\nFile \"\/home\/gk\/.local\/bin\/p4a\", line 9, in &lt;module&gt;\r\nsys.exit(main())\r\n^^^^^^\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/entrypoints.py\", line 18, in main\r\nToolchainCL()\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/toolchain.py\", line 685, in __init__\r\ngetattr(self, command)(args)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/toolchain.py\", line 104, in wrapper_func\r\nbuild_dist_from_args(ctx, dist, args)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/toolchain.py\", line 163, in build_dist_from_args\r\nbuild_recipes(build_order, python_modules, ctx,\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/build.py\", line 497, in build_recipes\r\nrecipe.apply_patches(arch)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipe.py\", line 538, in apply_patches\r\nself.apply_patch(\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipe.py\", line 257, in apply_patch\r\nshprint(sh.patch, \"-t\", \"-d\", build_dir, \"-p1\",\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/logger.py\", line 167, in shprint\r\nfor line in output:\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 915, in next\r\nself.wait()\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 845, in wait\r\nself.handle_command_exit_code(exit_code)\r\nFile \"\/home\/gk\/.local\/lib\/python3.11\/site-packages\/sh.py\", line 869, in handle_command_exit_code\r\nraise exc\r\nsh.ErrorReturnCode_1:\r\n\r\nRAN: \/usr\/bin\/patch -t -d \/home\/gk\/.local\/share\/python-for-android\/build\/other_builds\/opencv\/arm64-v8a__ndk_target_24\/opencv -p1 -i \/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches\/p4a_build.patch\r\n\r\nSTDOUT:\r\npatching file cmake\/OpenCVDetectPython.cmake\r\nHunk #1 FAILED at 175.\r\nHunk #2 FAILED at 244.\r\n2 out of 2 hunks FAILED -- saving rejects to file cmake\/OpenCVDetectPython.cmake.rej\r\npatching file modules\/python\/CMakeLists.txt<\/code><\/pre>\n<\/div>\n<p>If you notice properly, the error starts from the line number 1, where it is trying to apply patch <span>p4a_build.patch<\/span><\/p>\n<p>This patch file is from <a href=\"https:\/\/github.com\/kivy\/python-for-android\/tree\/develop\/pythonforandroid\/recipes\/opencv\">opencv recipe for python for android <\/a><\/p>\n<p>Content of this file is given below<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-git\" data-lang=\"Git\"><code>This patch allow that the opencv's build command correctly detects our version\r\nof python, so we can successfully build the python bindings (cv2.so)\r\n--- opencv-4.0.1\/cmake\/OpenCVDetectPython.cmake.orig\t2018-12-22 08:03:30.000000000 +0100\r\n+++ opencv-4.0.1\/cmake\/OpenCVDetectPython.cmake\t2019-01-31 11:33:10.896502978 +0100\r\n@@ -175,7 +175,7 @@ if(NOT ${found})\r\n       endif()\r\n     endif()\r\n\r\n-    if(NOT ANDROID AND NOT IOS)\r\n+    if(P4A OR NOT ANDROID AND NOT IOS)\r\n       if(CMAKE_HOST_UNIX)\r\n         execute_process(COMMAND ${_executable} -c \"from distutils.sysconfig import *; print(get_python_lib())\"\r\n                         RESULT_VARIABLE _cvpy_process\r\n@@ -244,7 +244,7 @@ if(NOT ${found})\r\n                           OUTPUT_STRIP_TRAILING_WHITESPACE)\r\n         endif()\r\n       endif()\r\n-    endif(NOT ANDROID AND NOT IOS)\r\n+    endif(P4A OR NOT ANDROID AND NOT IOS)\r\n   endif()\r\n\r\n   # Export return values\r\n--- opencv-4.0.1\/modules\/python\/CMakeLists.txt.orig\t2018-12-22 08:03:30.000000000 +0100\r\n+++ opencv-4.0.1\/modules\/python\/CMakeLists.txt\t2019-01-31 11:47:17.100494908 +0100\r\n@@ -3,7 +3,7 @@\r\n # ----------------------------------------------------------------------------\r\n if(DEFINED OPENCV_INITIAL_PASS)  # OpenCV build\r\n\r\n-if(ANDROID OR APPLE_FRAMEWORK OR WINRT)\r\n+if(ANDROID AND NOT P4A OR APPLE_FRAMEWORK OR WINRT)\r\n   ocv_module_disable_(python2)\r\n   ocv_module_disable_(python3)\r\n   return()\r\n\r\n<\/code><\/pre>\n<\/div>\n<p>Here this patch tries to modify the file <a href=\"https:\/\/github.com\/opencv\/opencv\/blob\/4.x\/cmake\/OpenCVDetectPython.cmake\">cmake\/OpenCVDetectPython.cmake<\/a> whose contents are given below<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code># Find specified Python version\r\n# Arguments:\r\n#   preferred_version (value): Version to check for first\r\n#   min_version (value): Minimum supported version\r\n#   library_env (value): Name of Python library ENV variable to check\r\n#   include_dir_env (value): Name of Python include directory ENV variable to check\r\n#   found (variable): Set if interpreter found\r\n#   executable (variable): Output of executable found\r\n#   version_string (variable): Output of found version\r\n#   version_major (variable): Output of found major version\r\n#   version_minor (variable): Output of found minor version\r\n#   libs_found (variable): Set if libs found\r\n#   libs_version_string (variable): Output of found libs version\r\n#   libraries (variable): Output of found Python libraries\r\n#   library (variable): Output of found Python library\r\n#   debug_libraries (variable): Output of found Python debug libraries\r\n#   debug_library (variable): Output of found Python debug library\r\n#   include_path (variable): Output of found Python include path\r\n#   include_dir (variable): Output of found Python include dir\r\n#   include_dir2 (variable): Output of found Python include dir2\r\n#   packages_path (variable): Output of found Python packages path\r\n#   numpy_include_dirs (variable): Output of found Python Numpy include dirs\r\n#   numpy_version (variable): Output of found Python Numpy version\r\nfunction(find_python preferred_version min_version library_env include_dir_env\r\n         found executable version_string version_major version_minor\r\n         libs_found libs_version_string libraries library debug_libraries\r\n         debug_library include_path include_dir include_dir2 packages_path\r\n         numpy_include_dirs numpy_version)\r\nif(NOT ${found})\r\n  if(\" ${executable}\" STREQUAL \" PYTHON_EXECUTABLE\")\r\n    set(__update_python_vars 0)\r\n  else()\r\n    set(__update_python_vars 1)\r\n  endif()\r\n\r\n  ocv_check_environment_variables(${executable})\r\n  if(${executable})\r\n    set(PYTHON_EXECUTABLE \"${${executable}}\")\r\n  endif()\r\n\r\n  if(WIN32 AND NOT ${executable} AND OPENCV_PYTHON_PREFER_WIN32_REGISTRY)  # deprecated\r\n    # search for executable with the same bitness as resulting binaries\r\n    # standard FindPythonInterp always prefers executable from system path\r\n    # this is really important because we are using the interpreter for numpy search and for choosing the install location\r\n    foreach(_CURRENT_VERSION ${Python_ADDITIONAL_VERSIONS} \"${preferred_version}\" \"${min_version}\")\r\n      find_host_program(PYTHON_EXECUTABLE\r\n        NAMES python${_CURRENT_VERSION} python\r\n        PATHS\r\n          [HKEY_LOCAL_MACHINE\\\\\\\\SOFTWARE\\\\\\\\Python\\\\\\\\PythonCore\\\\\\\\${_CURRENT_VERSION}\\\\\\\\InstallPath]\r\n          [HKEY_CURRENT_USER\\\\\\\\SOFTWARE\\\\\\\\Python\\\\\\\\PythonCore\\\\\\\\${_CURRENT_VERSION}\\\\\\\\InstallPath]\r\n        NO_SYSTEM_ENVIRONMENT_PATH\r\n      )\r\n    endforeach()\r\n  endif()\r\n\r\n  if(preferred_version)\r\n    set(__python_package_version \"${preferred_version} EXACT\")\r\n    find_host_package(PythonInterp \"${preferred_version}\" EXACT)\r\n    if(NOT PYTHONINTERP_FOUND)\r\n      message(STATUS \"Python is not found: ${preferred_version} EXACT\")\r\n    endif()\r\n  elseif(min_version)\r\n    set(__python_package_version \"${min_version}\")\r\n    find_host_package(PythonInterp \"${min_version}\")\r\n  else()\r\n    set(__python_package_version \"\")\r\n    find_host_package(PythonInterp)\r\n  endif()\r\n\r\n  string(REGEX MATCH \"^[0-9]+\" _python_version_major \"${min_version}\")\r\n\r\n  if(PYTHONINTERP_FOUND)\r\n    # Check if python major version is correct\r\n    if(\" ${_python_version_major}\" STREQUAL \" \")\r\n      set(_python_version_major \"${PYTHON_VERSION_MAJOR}\")\r\n    endif()\r\n    if(NOT \"${_python_version_major}\" STREQUAL \"${PYTHON_VERSION_MAJOR}\"\r\n        AND NOT DEFINED ${executable}\r\n    )\r\n      if(NOT OPENCV_SKIP_PYTHON_WARNING)\r\n        message(WARNING \"CMake's 'find_host_package(PythonInterp ${__python_package_version})' found wrong Python version:\\n\"\r\n                        \"PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}\\n\"\r\n                        \"PYTHON_VERSION_STRING=${PYTHON_VERSION_STRING}\\n\"\r\n                        \"Consider providing the '${executable}' variable via CMake command line or environment variables\\n\")\r\n      endif()\r\n      ocv_clear_vars(PYTHONINTERP_FOUND PYTHON_EXECUTABLE PYTHON_VERSION_STRING PYTHON_VERSION_MAJOR PYTHON_VERSION_MINOR PYTHON_VERSION_PATCH)\r\n      if(NOT CMAKE_VERSION VERSION_LESS \"3.12\")\r\n        if(_python_version_major STREQUAL \"2\")\r\n          set(__PYTHON_PREFIX Python2)\r\n        else()\r\n          set(__PYTHON_PREFIX Python3)\r\n        endif()\r\n        find_host_package(${__PYTHON_PREFIX} \"${preferred_version}\" COMPONENTS Interpreter)\r\n        if(${__PYTHON_PREFIX}_EXECUTABLE)\r\n          set(PYTHON_EXECUTABLE \"${${__PYTHON_PREFIX}_EXECUTABLE}\")\r\n          find_host_package(PythonInterp \"${preferred_version}\")  # Populate other variables\r\n        endif()\r\n      else()\r\n        message(STATUS \"Consider using CMake 3.12+ for better Python support\")\r\n      endif()\r\n    endif()\r\n    if(PYTHONINTERP_FOUND AND \"${_python_version_major}\" STREQUAL \"${PYTHON_VERSION_MAJOR}\")\r\n      # Copy outputs\r\n      set(_found ${PYTHONINTERP_FOUND})\r\n      set(_executable ${PYTHON_EXECUTABLE})\r\n      set(_version_string ${PYTHON_VERSION_STRING})\r\n      set(_version_major ${PYTHON_VERSION_MAJOR})\r\n      set(_version_minor ${PYTHON_VERSION_MINOR})\r\n      set(_version_patch ${PYTHON_VERSION_PATCH})\r\n    endif()\r\n  endif()\r\n\r\n  if(__update_python_vars)\r\n    # Clear find_host_package side effects\r\n    unset(PYTHONINTERP_FOUND)\r\n    unset(PYTHON_EXECUTABLE CACHE)\r\n    unset(PYTHON_VERSION_STRING)\r\n    unset(PYTHON_VERSION_MAJOR)\r\n    unset(PYTHON_VERSION_MINOR)\r\n    unset(PYTHON_VERSION_PATCH)\r\n  endif()\r\n\r\n  if(_found)\r\n    set(_version_major_minor \"${_version_major}.${_version_minor}\")\r\n\r\n    if(NOT ANDROID AND NOT APPLE_FRAMEWORK)\r\n      ocv_check_environment_variables(${library_env} ${include_dir_env})\r\n      if(NOT ${${library_env}} STREQUAL \"\")\r\n          set(PYTHON_LIBRARY \"${${library_env}}\")\r\n      endif()\r\n      if(NOT ${${include_dir_env}} STREQUAL \"\")\r\n          set(PYTHON_INCLUDE_DIR \"${${include_dir_env}}\")\r\n      endif()\r\n\r\n      # not using _version_string here, because it might not conform to the CMake version format\r\n      if(CMAKE_CROSSCOMPILING)\r\n        # builder version can differ from target, matching base version (e.g. 2.7)\r\n        find_package(PythonLibs \"${_version_major_minor}\")\r\n      else()\r\n        find_package(PythonLibs \"${_version_major_minor}.${_version_patch}\" EXACT)\r\n      endif()\r\n\r\n      if(PYTHONLIBS_FOUND)\r\n        # Copy outputs\r\n        set(_libs_found ${PYTHONLIBS_FOUND})\r\n        set(_libraries ${PYTHON_LIBRARIES})\r\n        set(_include_path ${PYTHON_INCLUDE_PATH})\r\n        set(_include_dirs ${PYTHON_INCLUDE_DIRS})\r\n        set(_debug_libraries ${PYTHON_DEBUG_LIBRARIES})\r\n        set(_libs_version_string ${PYTHONLIBS_VERSION_STRING})\r\n        set(_debug_library ${PYTHON_DEBUG_LIBRARY})\r\n        set(_library ${PYTHON_LIBRARY})\r\n        set(_library_debug ${PYTHON_LIBRARY_DEBUG})\r\n        set(_library_release ${PYTHON_LIBRARY_RELEASE})\r\n        set(_include_dir ${PYTHON_INCLUDE_DIR})\r\n        set(_include_dir2 ${PYTHON_INCLUDE_DIR2})\r\n      endif()\r\n      if(__update_python_vars)\r\n        # Clear find_package side effects\r\n        unset(PYTHONLIBS_FOUND)\r\n        unset(PYTHON_LIBRARIES)\r\n        unset(PYTHON_INCLUDE_PATH)\r\n        unset(PYTHON_INCLUDE_DIRS)\r\n        unset(PYTHON_DEBUG_LIBRARIES)\r\n        unset(PYTHONLIBS_VERSION_STRING)\r\n        unset(PYTHON_DEBUG_LIBRARY CACHE)\r\n        unset(PYTHON_LIBRARY)\r\n        unset(PYTHON_LIBRARY_DEBUG)\r\n        unset(PYTHON_LIBRARY_RELEASE)\r\n        unset(PYTHON_LIBRARY CACHE)\r\n        unset(PYTHON_LIBRARY_DEBUG CACHE)\r\n        unset(PYTHON_LIBRARY_RELEASE CACHE)\r\n        unset(PYTHON_INCLUDE_DIR CACHE)\r\n        unset(PYTHON_INCLUDE_DIR2 CACHE)\r\n      endif()\r\n    endif()\r\n\r\n    if(NOT ANDROID AND NOT IOS AND NOT XROS)\r\n      if(CMAKE_HOST_UNIX)\r\n        execute_process(COMMAND ${_executable} -c \"from sysconfig import *; print(get_path('purelib'))\"\r\n                        RESULT_VARIABLE _cvpy_process\r\n                        OUTPUT_VARIABLE _std_packages_path\r\n                        OUTPUT_STRIP_TRAILING_WHITESPACE)\r\n        if(\"${_std_packages_path}\" MATCHES \"site-packages\")\r\n          set(_packages_path \"python${_version_major_minor}\/site-packages\")\r\n        else() #debian based assumed, install to the dist-packages.\r\n          set(_packages_path \"python${_version_major_minor}\/dist-packages\")\r\n        endif()\r\n        set(_packages_path \"lib\/${_packages_path}\")\r\n      elseif(CMAKE_HOST_WIN32)\r\n        get_filename_component(_path \"${_executable}\" PATH)\r\n        file(TO_CMAKE_PATH \"${_path}\" _path)\r\n        if(NOT EXISTS \"${_path}\/Lib\/site-packages\")\r\n          unset(_path)\r\n          get_filename_component(_path \"[HKEY_LOCAL_MACHINE\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_version_major_minor}\\\\InstallPath]\" ABSOLUTE)\r\n          if(NOT _path)\r\n             get_filename_component(_path \"[HKEY_CURRENT_USER\\\\SOFTWARE\\\\Python\\\\PythonCore\\\\${_version_major_minor}\\\\InstallPath]\" ABSOLUTE)\r\n          endif()\r\n          file(TO_CMAKE_PATH \"${_path}\" _path)\r\n        endif()\r\n        set(_packages_path \"${_path}\/Lib\/site-packages\")\r\n        unset(_path)\r\n      endif()\r\n\r\n      set(_numpy_include_dirs \"${${numpy_include_dirs}}\")\r\n\r\n      if(NOT _numpy_include_dirs)\r\n        if(CMAKE_CROSSCOMPILING)\r\n          message(STATUS \"Cannot probe for Python\/Numpy support (because we are cross-compiling OpenCV)\")\r\n          message(STATUS \"If you want to enable Python\/Numpy support, set the following variables:\")\r\n          message(STATUS \"  PYTHON2_INCLUDE_PATH\")\r\n          message(STATUS \"  PYTHON2_LIBRARIES (optional on Unix-like systems)\")\r\n          message(STATUS \"  PYTHON2_NUMPY_INCLUDE_DIRS\")\r\n          message(STATUS \"  PYTHON3_INCLUDE_PATH\")\r\n          message(STATUS \"  PYTHON3_LIBRARIES (optional on Unix-like systems)\")\r\n          message(STATUS \"  PYTHON3_NUMPY_INCLUDE_DIRS\")\r\n        else()\r\n          # Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy\r\n          execute_process(COMMAND \"${_executable}\" -c \"import numpy; print(numpy.get_include())\"\r\n                          RESULT_VARIABLE _numpy_process\r\n                          OUTPUT_VARIABLE _numpy_include_dirs\r\n                          OUTPUT_STRIP_TRAILING_WHITESPACE)\r\n\r\n          if(NOT _numpy_process EQUAL 0)\r\n              unset(_numpy_include_dirs)\r\n          endif()\r\n        endif()\r\n      endif()\r\n\r\n      if(_numpy_include_dirs)\r\n        file(TO_CMAKE_PATH \"${_numpy_include_dirs}\" _numpy_include_dirs)\r\n        if(CMAKE_CROSSCOMPILING)\r\n          if(NOT _numpy_version)\r\n            set(_numpy_version \"undefined - cannot be probed because of the cross-compilation\")\r\n          endif()\r\n        else()\r\n          execute_process(COMMAND \"${_executable}\" -c \"import numpy; print(numpy.version.version)\"\r\n                          RESULT_VARIABLE _numpy_process\r\n                          OUTPUT_VARIABLE _numpy_version\r\n                          OUTPUT_STRIP_TRAILING_WHITESPACE)\r\n        endif()\r\n      endif()\r\n    endif(NOT ANDROID AND NOT IOS AND NOT XROS)\r\n  endif()\r\n\r\n  # Export return values\r\n  set(${found} \"${_found}\" CACHE INTERNAL \"\")\r\n  set(${executable} \"${_executable}\" CACHE FILEPATH \"Path to Python interpreter\")\r\n  set(${version_string} \"${_version_string}\" CACHE INTERNAL \"\")\r\n  set(${version_major} \"${_version_major}\" CACHE INTERNAL \"\")\r\n  set(${version_minor} \"${_version_minor}\" CACHE INTERNAL \"\")\r\n  set(${libs_found} \"${_libs_found}\" CACHE INTERNAL \"\")\r\n  set(${libs_version_string} \"${_libs_version_string}\" CACHE INTERNAL \"\")\r\n  set(${libraries} \"${_libraries}\" CACHE INTERNAL \"Python libraries\")\r\n  set(${library} \"${_library}\" CACHE FILEPATH \"Path to Python library\")\r\n  set(${debug_libraries} \"${_debug_libraries}\" CACHE INTERNAL \"\")\r\n  set(${debug_library} \"${_debug_library}\" CACHE FILEPATH \"Path to Python debug\")\r\n  set(${include_path} \"${_include_path}\" CACHE INTERNAL \"\")\r\n  set(${include_dir} \"${_include_dir}\" CACHE PATH \"Python include dir\")\r\n  set(${include_dir2} \"${_include_dir2}\" CACHE PATH \"Python include dir 2\")\r\n  set(${packages_path} \"${_packages_path}\" CACHE STRING \"Where to install the python packages.\")\r\n  set(${numpy_include_dirs} ${_numpy_include_dirs} CACHE PATH \"Path to numpy headers\")\r\n  set(${numpy_version} \"${_numpy_version}\" CACHE INTERNAL \"\")\r\nendif()\r\nendfunction(find_python)\r\n\r\nif(OPENCV_PYTHON_SKIP_DETECTION)\r\n  return()\r\nendif()\r\n\r\nocv_check_environment_variables(OPENCV_ENABLE_PYTHON2)\r\nocv_check_environment_variables(PYTHON2_EXECUTABLE)\r\nif((OPENCV_ENABLE_PYTHON2 OR PYTHON2_EXECUTABLE OR BUILD_opencv_python2)\r\n    AND NOT OPENCV_PYTHON2_SKIP_DETECTION\r\n)\r\n  find_python(\"\" \"${MIN_VER_PYTHON2}\" PYTHON2_LIBRARY PYTHON2_INCLUDE_DIR\r\n    PYTHON2INTERP_FOUND PYTHON2_EXECUTABLE PYTHON2_VERSION_STRING\r\n    PYTHON2_VERSION_MAJOR PYTHON2_VERSION_MINOR PYTHON2LIBS_FOUND\r\n    PYTHON2LIBS_VERSION_STRING PYTHON2_LIBRARIES PYTHON2_LIBRARY\r\n    PYTHON2_DEBUG_LIBRARIES PYTHON2_LIBRARY_DEBUG PYTHON2_INCLUDE_PATH\r\n    PYTHON2_INCLUDE_DIR PYTHON2_INCLUDE_DIR2 PYTHON2_PACKAGES_PATH\r\n    PYTHON2_NUMPY_INCLUDE_DIRS PYTHON2_NUMPY_VERSION)\r\nendif()\r\n\r\noption(OPENCV_PYTHON3_VERSION \"Python3 version\" \"\")\r\nfind_python(\"${OPENCV_PYTHON3_VERSION}\" \"${MIN_VER_PYTHON3}\" PYTHON3_LIBRARY PYTHON3_INCLUDE_DIR\r\n    PYTHON3INTERP_FOUND PYTHON3_EXECUTABLE PYTHON3_VERSION_STRING\r\n    PYTHON3_VERSION_MAJOR PYTHON3_VERSION_MINOR PYTHON3LIBS_FOUND\r\n    PYTHON3LIBS_VERSION_STRING PYTHON3_LIBRARIES PYTHON3_LIBRARY\r\n    PYTHON3_DEBUG_LIBRARIES PYTHON3_LIBRARY_DEBUG PYTHON3_INCLUDE_PATH\r\n    PYTHON3_INCLUDE_DIR PYTHON3_INCLUDE_DIR2 PYTHON3_PACKAGES_PATH\r\n    PYTHON3_NUMPY_INCLUDE_DIRS PYTHON3_NUMPY_VERSION)\r\n\r\n# Problem in numpy &gt;=1.15 &lt;1.17 OCV_OPTION(PYTHON3_LIMITED_API \"Build with Python Limited API (not available with numpy &gt;=1.15 &lt;1.17)\" NO\r\n           VISIBLE_IF PYTHON3_NUMPY_VERSION VERSION_LESS \"1.15\" OR NOT PYTHON3_NUMPY_VERSION VERSION_LESS \"1.17\")\r\nif(PYTHON3_LIMITED_API)\r\n  set(_default_ver \"0x03060000\")\r\n  if(PYTHON3_VERSION_STRING VERSION_LESS \"3.6\")\r\n    # fix for older pythons\r\n    set(_default_ver \"0x030${PYTHON3_VERSION_MINOR}0000\")\r\n  endif()\r\n  set(PYTHON3_LIMITED_API_VERSION ${_default_ver} CACHE STRING \"Minimal Python version for Limited API\")\r\nendif()\r\n\r\nif(PYTHON_DEFAULT_EXECUTABLE)\r\n    set(PYTHON_DEFAULT_AVAILABLE \"TRUE\")\r\nelseif(PYTHON2_EXECUTABLE AND PYTHON2INTERP_FOUND)\r\n    # Use Python 2 as default Python interpreter\r\n    set(PYTHON_DEFAULT_AVAILABLE \"TRUE\")\r\n    set(PYTHON_DEFAULT_EXECUTABLE \"${PYTHON2_EXECUTABLE}\")\r\nelseif(PYTHON3_EXECUTABLE AND PYTHON3INTERP_FOUND)\r\n    # Use Python 3 as fallback Python interpreter (if there is no Python 2)\r\n    set(PYTHON_DEFAULT_AVAILABLE \"TRUE\")\r\n    set(PYTHON_DEFAULT_EXECUTABLE \"${PYTHON3_EXECUTABLE}\")\r\nendif()\r\n\r\nif(PYTHON_DEFAULT_AVAILABLE)\r\n  execute_process(COMMAND ${PYTHON_DEFAULT_EXECUTABLE} --version\r\n                  OUTPUT_VARIABLE PYTHON_DEFAULT_VERSION\r\n                  OUTPUT_STRIP_TRAILING_WHITESPACE)\r\n  string(REGEX MATCH \"[0-9]+.[0-9]+.[0-9]+\" PYTHON_DEFAULT_VERSION \"${PYTHON_DEFAULT_VERSION}\")\r\nendif()<\/code><\/pre>\n<\/div>\n<p>First hunk will try to replace the line containing text <span style=\"color: #ff0000;\">if(NOT ANDROID AND NOT IOS)<\/span> with <span style=\"color: #339966;\"><strong>if(P4A OR NOT ANDROID AND NOT IOS)<\/strong><\/span> at line number 178<\/p>\n<p>But the real problem is that line 178 contains the text <strong>if(NOT ANDROID AND NOT IOS AND NOT XROS)<\/strong> which is different<\/p>\n<p>since the patch file cant find exact match, it fails<\/p>\n<h2><span class=\"ez-toc-section\" id=\"resolve-hunk-failed-error\"><\/span>Resolve Hunk failed error<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To resolve this error do the following<\/p>\n<p>1. goto the recipe folder by executing this command<\/p>\n<p>cd ~\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches<\/p>\n<p>2. open the p4a_build.patch file<\/p>\n<p>3. Modify the lines 9 and 10 with the following<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-bash\" data-lang=\"Bash\"><code>-    if(NOT ANDROID AND NOT IOS AND NOT XROS)\r\n+    if(P4A OR NOT ANDROID AND NOT IOS AND NOT XROS)<\/code><\/pre>\n<\/div>\n<p>4. similarly modify the next hunk also by modifying lines 18 and 19 with the following lines<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>\r\n-    endif(NOT ANDROID AND NOT IOS AND NOT XROS)\r\n+    endif(P4A OR NOT ANDROID AND NOT IOS AND NOT XROS)\r\n<\/code><\/pre>\n<\/div>\n<p>5.Modify the line number 14 with the following<\/p>\n<div>\n<div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-git\" data-lang=\"Git\"><code>@@ -240,7 +240,7 @@ if(NOT ${found})<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>or simply download this <a href=\"https:\/\/github.com\/techrisin\/patch-file-for-opency-in-python-for-android-and-buildozer\/blob\/main\/p4a_build.patch\">patch file<\/a> and copy it to the recipe folder ~\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches<\/p>\n<p>If you build now, the error will not occur<\/p>\n<h2><span class=\"ez-toc-section\" id=\"licenses\"><\/span>Licenses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"p4a-recipe\"><\/span>p4a recipe<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>MIT License<\/p>\n<p>Copyright (c) 2010-2023 Kivy Team and other contributors<\/p>\n<h3><span class=\"ez-toc-section\" id=\"opencv\"><\/span>OpenCV<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Apache License<br \/>\nVersion 2.0, January 2004<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>During the building of android app from python code you may come across this error RAN: \/usr\/bin\/patch -t -d \/home\/gk\/.local\/share\/python-for-android\/build\/other_builds\/opencv\/arm64-v8a__ndk_target_24\/opencv -p1 -i \/home\/gk\/.local\/lib\/python3.11\/site-packages\/pythonforandroid\/recipes\/opencv\/patches\/p4a_build.patch STDOUT: patching file cmake\/OpenCVDetectPython.cmake Hunk #1 FAILED at 175. Hunk #2 FAILED at 244. 2 out of 2 hunks FAILED &#8212; saving rejects to file cmake\/OpenCVDetectPython.cmake.rej patching file modules\/python\/CMakeLists.txt What does the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":527,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[543],"tags":[564,574,575,554,558,557,568,556,562,563,561],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to solve hunks FAILED - saving rejects to file - Techris Innovation Hub<\/title>\n<meta name=\"description\" content=\"The opencv patch recipe file to be modified to solve How to solve hunks FAILED -- saving rejects to file. 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