# Build error Android: Exception: C:\\Program Files\\Unity\\2019.4.33f1\\Editor\\Data\\il2cpp/build/deploy/net471/il2cpp.exe did not run properly! **URL:** \ **Category:** I'm Stuck\ **Created:** [December 10, 2021, 10:57am UTC](https://community.nianticspatial.com/t/build-error-android-exception-c-program-files-unity-2019-4-33f1-editor-data-il2cpp-build-deploy-net471-il2cpp-exe-did-not-run-properly/855 "2021-12-10T10:57:04Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Suzan\_Oslin](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@Suzan\_Oslin](https://community.nianticspatial.com/u/Suzan_Oslin)\ **Post date:** [December 10, 2021, 10:57am UTC](https://community.nianticspatial.com/t/build-error-android-exception-c-program-files-unity-2019-4-33f1-editor-data-il2cpp-build-deploy-net471-il2cpp-exe-did-not-run-properly/855/1 "2021-12-10T10:57:04Z")
_Include the following details (edit as applicable):_ - **Issue category** : Sample Segementation – BUILD ERROR - **Device type & OS version** : Android OnePlus 7T - **Host machine & OS version** : Windows 10 - **Issue Environment** : Unity to Device - **Xcode version** : - **ARDK version** : 1.0.1 - **Unity version** : 2019.4.33f1 Description of the issue: Exception: C:\Program Files\Unity\2019.4.33f1\Editor\Data\il2cpp/build/deploy/net471/il2cpp.exe did not run properly! Exception: C:\Program Files\Unity\2019.4.33f1\Editor\Data\il2cpp/build/deploy/net471/il2cpp.exe did not run properly! Failed running “C:\Program Files\Unity\2019.4.33f1\Editor\Data\il2cpp/build/deploy/net471/il2cpp.exe” --compile-cpp --libil2cpp-static --platform=“Android” --architecture=“ARM64” --configuration=“Release” --outputpath=“D:\UnityProjects\LightSail\_Examples\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a\libil2cpp.so” --cachedirectory=“D:\UnityProjects\LightSail\_Examples\Assets…\Library\il2cpp\_android\_arm64-v8a/il2cpp\_cache” --additional-include-directories=“C:/Program Files/Unity/2019.4.33f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\bdwgc/include” --additional-include-directories=“C:/Program Files/Unity/2019.4.33f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\libil2cpp/include” --tool-chain-path=“C:/Program Files/Unity/2019.4.33f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK” --map-file-parser=“C:/Program Files/Unity/2019.4.33f1/Editor/Data/Tools/MapFileParser/MapFileParser.exe” --generatedcppdir=D:/UnityProjects/LightSail\_Examples/Temp/StagingArea/Il2Cpp/il2cppOutput --dotnetprofile=“unityaot” stdout: Building libil2cpp.so with AndroidToolChain Output directory: D:\UnityProjects\LightSail\_Examples\Temp\StagingArea\assets\bin\Data\Native\arm64-v8a Cache directory: D:\UnityProjects\LightSail\_Examples\Library\il2cpp\_android\_arm64-v8a\il2cpp\_cache ObjectFiles: 190 of which compiled: 0 Total compilation time: 103 milliseconds. il2cpp.exe didn’t catch exception: System.IO.IOException: Access to the path ‘D:\UnityProjects\LightSail\_Examples\Library\il2cpp\_android\_arm64-v8a\il2cpp\_cache\linkresult\_361A354973F4B39A66CD0B01A4E27228’ 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 ‘D:\UnityProjects\LightSail\_Examples\Library\il2cpp\_android\_arm64-v8a\il2cpp\_cache\linkresult\_361A354973F4B39A66CD0B01A4E27228’ 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) UnityEditorInternal.Runner.RunProgram (UnityEditor.Utils.Program p, System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser) (at \<3d6d6a4a6d7c4ec2aa654b7d8f54a096\>:0) UnityEditorInternal.Runner.RunManagedProgram (System.String exe, System.String args, System.String workingDirectory, UnityEditor.Scripting.Compilers.CompilerOutputParserBase parser, System.Action`1[T] setupStartInfo) (at <3d6d6a4a6d7c4ec2aa654b7d8f54a096>:0) UnityEditorInternal.IL2CPPBuilder.RunIl2CppWithArguments (System.Collections.Generic.List`1[T] arguments, System.Action`1[T] setupStartInfo, System.String workingDirectory) (at <3d6d6a4a6d7c4ec2aa654b7d8f54a096>:0) UnityEditorInternal.IL2CPPBuilder.RunCompileAndLink () (at <3d6d6a4a6d7c4ec2aa654b7d8f54a096>:0) UnityEditorInternal.IL2CPPUtils.RunCompileAndLink (System.String tempFolder, System.String stagingAreaData, UnityEditorInternal.IIl2CppPlatformProvider platformProvider, System.Action`1[T] modifyOutputBeforeCompile, UnityEditor.RuntimeClassRegistry runtimeClassRegistry) (at \<3d6d6a4a6d7c4ec2aa654b7d8f54a096\>:0) UnityEditor.Android.PostProcessor.Tasks.RunIl2Cpp.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at :0) UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at :0) UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at :0) UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at :0) UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at \<3d6d6a4a6d7c4ec2aa654b7d8f54a096\>:0) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr) ![Screenshot 2021-12-10 025620](https://us1.discourse-cdn.com/niantic/original/1X/26da7c73baa721cd7ec0e59f6281d2e3c2a1d11d.jpeg) ---
**Author:** ![Arthur\_Cheng1](https://avatars.discourse-cdn.com/v4/letter/a/ce73a5/32.png) [@Arthur\_Cheng1](https://community.nianticspatial.com/u/Arthur_Cheng1)\ **Post date:** [December 15, 2021, 3:41am UTC](https://community.nianticspatial.com/t/build-error-android-exception-c-program-files-unity-2019-4-33f1-editor-data-il2cpp-build-deploy-net471-il2cpp-exe-did-not-run-properly/855/2 "2021-12-15T03:41:50Z")
Bump, I’m getting a similar build error as well on my project - “IL2CPP did not run properly” Any help appreciated! ---
**Author:** ![Moranda\_Nalls1](https://avatars.discourse-cdn.com/v4/letter/m/51bf81/32.png) [@Moranda\_Nalls1](https://community.nianticspatial.com/u/Moranda_Nalls1)\ **Post date:** [December 15, 2021, 11:57pm UTC](https://community.nianticspatial.com/t/build-error-android-exception-c-program-files-unity-2019-4-33f1-editor-data-il2cpp-build-deploy-net471-il2cpp-exe-did-not-run-properly/855/3 "2021-12-15T23:57:58Z")
Hi, apologies for the delay. One thing you will need to do is start a new project in Unity. Next, save the build in a different location from before. Follow the tutorial, [https://lightship.dev/docs/getting\_started.html](https://lightship.dev/docs/getting_started.html), in our getting started documentation to get your build running successfully. Also, we have a new version of ARDK available: [https://lightship.dev/products/ardk/](https://lightship.dev/products/ardk/). I hope this helps. ---
**Author:** ![Maverick\_Niantic](https://avatars.discourse-cdn.com/v4/letter/m/8edcca/32.png) [@Maverick\_Niantic](https://community.nianticspatial.com/u/Maverick_Niantic)\ **Post date:** [March 5, 2026, 11:50pm UTC](https://community.nianticspatial.com/t/build-error-android-exception-c-program-files-unity-2019-4-33f1-editor-data-il2cpp-build-deploy-net471-il2cpp-exe-did-not-run-properly/855/4 "2026-03-05T23:50:27Z")
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