Build fails with IL2CPP

To comply with new Google policy of 64 bit requirement, i changed the scripting backend to IL2CPP . But
il2cpp is not running properly

Failed running C:\Program Files\Unity\Editor\Data\il2cpp/build/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static

The exception that i am getting

Exception: C:\Program Files\Unity\Editor\Data\il2cpp/build/il2cpp.exe did not run properly!
fatal error: bracket nesting level exceeded maximum of 256
E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_9.cpp:40050:4858: note: use -fbracket-depth=N to increase maximum nesting level
1 error generated.

Entire Error Log:

Failed running C:\Program Files\Unity\Editor\Data\il2cpp/build/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="Android" --architecture="ARMv7" --configuration="Release" --outputpath="E:\Unity Repository\Project Migration\Temp\StagingArea\assets\bin\Data\Native\armeabi-v7a\libil2cpp.so" --cachedirectory="E:\Unity Repository\Project Migration\Assets\..\Library\il2cpp_android_armeabi-v7a/il2cpp_cache" --additional-include-directories="C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\bdwgc/include" --additional-include-directories="C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\libil2cpp/include" --tool-chain-path="C:/Users/Tej Narayan Shetty/AppData/Local/Android/Sdk/android-ndk-r16b-windows-x86_64/android-ndk-r16b" --map-file-parser="C:\Program Files\Unity\Editor\Data\Tools\MapFileParser\MapFileParser.exe" --directory="E:\Unity Repository\Project Migration\Temp\StagingArea\assets\bin\Data\Managed" --generatedcppdir="E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput"

stdout:
Building libil2cpp.so with AndroidToolChain
    Output directory: E:\Unity Repository\Project Migration\Temp\StagingArea\assets\bin\Data\Native\armeabi-v7a
    Cache directory: E:\Unity Repository\Project Migration\Library\il2cpp_android_armeabi-v7a\il2cpp_cache
il2cpp.exe didn't catch exception: Unity.IL2CPP.Building.BuilderFailedException: E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_9.cpp:40050:4858: fatal error: bracket nesting level exceeded maximum of 256
E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_9.cpp:40050:4858: note: use -fbracket-depth=N to increase maximum nesting level
1 error generated.


Invocation was: Executable: "C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++"
Arguments: -DNET_4_0 -DUNITY_AOT -DGC_NOT_DLL -DRUNTIME_IL2CPP -DLINUX -DANDROID -DPLATFORM_ANDROID -D__linux__ -D__STDC_FORMAT_MACROS -I"C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\bdwgc\include" -I"C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\libil2cpp\include" -I"C:\Program Files\Unity\Editor\Data\il2cpp\libil2cpp" -I"C:\Program Files\Unity\Editor\Data\il2cpp\external\boehmgc\include" -I"E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput" -I"." -I"C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\include" -I"C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\include\backward" -I"C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\sources\cxx-stl\gnu-libstdc++\4.9\libs\armeabi-v7a\include" -c -g -DNDEBUG -funwind-tables -fno-limit-debug-info -fdata-sections -ffunction-sections -Wa,--noexecstack -fno-rtti -std=c++98 -fno-strict-aliasing -fvisibility=hidden -fvisibility-inlines-hidden -fno-strict-overflow -fPIC -Os --sysroot "C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\sysroot" -gcc-toolchain "C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\toolchains\arm-linux-androideabi-4.9\prebuilt\windows-x86_64" -target armv7-none-linux-androideabi -isystem "C:\Users\Tej Narayan Shetty\AppData\Local\Android\Sdk\android-ndk-r16b-windows-x86_64\android-ndk-r16b\sysroot\usr\include\arm-linux-androideabi" -D__ANDROID_API__=16 -march=armv7-a -mfloat-abi=softfp -mfpu=neon-fp16 -Wno-unused-value "E:\Unity Repository\Project Migration\Temp\StagingArea\Il2Cpp\il2cppOutput\Bulk_Assembly-CSharp_9.cpp" -o "E:/Unity Repository/Project Migration/Library/il2cpp_android_armeabi-v7a/il2cpp_cache/77B8049BA2F36A81F042093DFF7B3F13.o"

   at Unity.IL2CPP.Building.CppProgramBuilder.BuildAllCppFiles(IEnumerable`1 sourceFilesToCompile, IBuildStatisticsCollector statisticsCollector)
   at Unity.IL2CPP.Building.CppProgramBuilder.Build(IBuildStatistics& statistics)
   at il2cpp.Program.DoRun(String[] args)

Hi!
Please report a bug.

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1 Like

Thank you for the detailed reply. I will raise a bug ticket.

1 Like

I have raised a bug ticket. Case no. is 1153210

1 Like

Perfect, thanks!

I have the same problem when i upgrade unity project form version 2017 to 2019 . i have no idea to solve this problem.

I have the same problem when i upgrade unity project form version 2017 to 2019 . i have no idea to solve this problem.