Question by omarl1933 · Aug 26, 2021 at 12:20 PM · android error build il2cpp

il2cpp.exe didn't catch exception: System.IO.IOException: Access to the path '{path}' is denied.

Hi,

For reference, I am using Unity 2019.4.9f1 and building with Android API 30.

I have searched every corner of the internet and I am unable to find a solution.

This error is strange as it has appeard randomly after I have done countless builds for Android in the past. I'm thinking maybe Windows update broke something.

Each time I build for Android (using IL2CPP for both ARMv7 and ARM64 architectures) I am getting the following errors:

error

Failed running C:\Program Files\Unity\Hub\Editor\2019.4.9f1\Editor\Data\il2cpp/build/deploy/net471/il2cpp.exe --compile-cpp --libil2cpp-static --platform="Android" --architecture="ARM64" --configuration="Release" --outputpath="C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a\libil2cpp.so" --cachedirectory="C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Assets..\Library\il2cpp_android_arm64-v8a/il2cpp_cache" --additional-include-directories="C:/Program Files/Unity/Hub/Editor/2019.4.9f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\bdwgc/include" --additional-include-directories="C:/Program Files/Unity/Hub/Editor/2019.4.9f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\libil2cpp/include" --tool-chain-path="C:/Program Files/Unity/Hub/Editor/2019.4.9f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK" --map-file-parser="C:/Program Files/Unity/Hub/Editor/2019.4.9f1/Editor/Data/Tools/MapFileParser/MapFileParser.exe" --generatedcppdir=C:/Users/omar1/OneDrive/Desktop/PixiRabbit/Temp/StagingArea/Il2Cpp/il2cppOutput --dotnetprofile="unityaot"

stdout:

Building libil2cpp.so with AndroidToolChain

Output directory: C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a

Cache directory: C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Library\il2cpp_android_arm64-v8a\il2cpp_cache

ObjectFiles: 157 of which compiled: 0

Total compilation time: 115 milliseconds.

il2cpp.exe didn't catch exception: System.IO.IOException: Access to the path 'C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Library\il2cpp_android_arm64-v8a\il2cpp_cache\linkresult_8E417845F41A6236948E52CE0D7BBBA7' is denied.

at System.IO.Directory.DeleteHelper(String fullPath, String userPath, Boolean recursive, Boolean throwOnTopLevelDirectoryNotFound, WIN32_FIND_DATA& data)

at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive, Boolean checkHost)

at NiceIO.NPath.Delete(DeleteMode deleteMode)

at Unity.IL2CPP.Building.CppProgramBuilder.PostprocessObjectFiles(HashSet`1 objectFiles, CppToolChainContext toolChainContext)

at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)

at il2cpp.Program.DoRun(String[] args, List`1 foundAssemblies)

at il2cpp.Program.Run(String[] args, Boolean setInvariantCulture)

at il2cpp.Program.Main(String[] args)

stderr:

Unhandled Exception: System.IO.IOException: Access to the path 'C:\Users\omar1\OneDrive\Desktop\PixiRabbit\Library\il2cpp_android_arm64-v8a\il2cpp_cache\linkresult_8E417845F41A6236948E52CE0D7BBBA7' is denied.

at System.IO.Directory.DeleteHelper(String fullPath, String userPath, Boolean recursive, Boolean throwOnTopLevelDirectoryNotFound, WIN32_FIND_DATA& data)

at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive, Boolean checkHost)

at NiceIO.NPath.Delete(DeleteMode deleteMode)

at Unity.IL2CPP.Building.CppProgramBuilder.PostprocessObjectFiles(HashSet`1 objectFiles, CppToolChainContext toolChainContext)

at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)

at il2cpp.Program.DoRun(String[] args, List`1 foundAssemblies)

at il2cpp.Program.Run(String[] args, Boolean setInvariantCulture)

at il2cpp.Program.Main(String[] args)

UnityEngine.Debug:LogError(Object)

UnityEditorInternal.Runner:RunProgram(Program, String, String, String, CompilerOutputParserBase)

UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1)

UnityEditorInternal.IL2CPPBuilder:RunIl2CppWithArguments(List`1, Action`1, String)

UnityEditorInternal.IL2CPPBuilder:RunCompileAndLink()