Fresh Ubuntu 18.04 installation, IL2CPP issue, missing libraries?

Hi all,
I just installed fresh Ubuntu 18.04 to have the best possible support for Unity on Linux.
I almost got everything right for mobile development apart from IL2CPP on Android.

I installed Unity 2019.2.17 with option to install Unity provided libraries for JAVA/NDK/SDK, with some workaround mentioned here(https://issuetracker.unity3d.com/is...se-andriod-ndk-and-sdk-tool-installed-via-hub).
In the end, Unity detects SDK, JDK and NDK just fine and can build apk package with Mono no problem.
For NDK I used the one Unity downloaded package but had to fix the invalid directory it was downloaded to.
I use .Net 4.x, tried to build AMRv7 and ARM64, and with NDK the issue is the same.

Whenever I try to build Android package using IL2CPP I get:

Code (CSharp):

1. Failed running /home/marcin/Unity/Hub/Editor/2019.2.17f1/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="/home/marcin/Workspace/games/test 2019.2.17/Temp/StagingArea/assets/bin/Data/Native/armeabi-v7a/libil2cpp.so" --cachedirectory="/home/marcin/Workspace/games/test 2019.2.17/Assets/../Library/il2cpp_android_armeabi-v7a/il2cpp_cache" --additional-include-directories="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools/bdwgc/include" --additional-include-directories="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools/libil2cpp/include" --tool-chain-path="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK" --profiler-report --map-file-parser="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/Tools/MapFileParser/MapFileParser" --directory="/home/marcin/Workspace/games/test 2019.2.17/Temp/StagingArea/assets/bin/Data/Managed" --generatedcppdir="/home/marcin/Workspace/games/test 2019.2.17/Temp/StagingArea/Il2Cpp/il2cppOutput"

When I try to run the command in terminal manually I get some more readable error output:

Code (CSharp):

1. /home/marcin/Unity/Hub/Editor/2019.2.17f1/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="/home/marcin/Workspace/games/test 2019.2.17/Temp/StagingArea/assets/bin/Data/Native/armeabi-v7a/libil2cpp.so" --cachedirectory="/home/marcin/Workspace/games/test 2019.2.17/Assets/../Library/il2cpp_android_armeabi-v7a/il2cpp_cache" --additional-include-directories="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools/bdwgc/include" --additional-include-directories="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools/libil2cpp/include" --tool-chain-path="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK" --profiler-report --map-file-parser="/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/Tools/MapFileParser/MapFileParser" --directory="/home/marcin/Workspace/games/test"
2.  
3. bash: /home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/il2cpp/build/il2cpp.exe: cannot execute binary file: Exec format error
4.  

From what I read "Exec format error" is related to issue with cpu type invalid versions (arm/32 bit/64 bit etc).
I am not sure what is wrong here but I assume that I miss some libraries which would allow me to build Android IL2CPP using NDK.
What I have installed is build-essentials plus some libraries like
libc6:i386 libstdc++6:i386
libgtk2.0-0 libsoup2.4-1 libarchive13 libpng16-16 libgconf-2-4 lib32stdc++6 libcanberra-gtk-module
This is the list I found somewhere on the internet. Unfortunately it didn't help.
Any clues?

 

Thank you for fast feedback, didn't expect it

@andrews_unity
I didn't install any mono related packages until now.
I just installed mono-runtime, but unfortunately it didn't help.
Probably this is not the right thing to install but I am not sure which mono related thing can fix it.
If you know where I can find list of packages which are required I am more than happy to follow that.

@Tautvydas-Zilys
I am attaching Editor.log right after I installed mono-runtime and built sample scene(got expected error).

Again, thank you for answers.

[Update]
I later also installed mono-devel(thank you Rider) but it didn't change anything.

 

Thanks @Tautvydas-Zilys for help

bin clang directory binaries didn't have execute permission, fixed(should it be reported separately?).
Unfortunately now there is another issue, I guess important part(new Editor.log attached)

Code (CSharp):

1. home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ @"/tmp/tmp5e750f76.tmp" -o "/home/marcin/Workspace/games/test 2019.2.17/Library/il2cpp_android_armeabi-v7a/il2cpp_cache/linkresult_5B31CF606F193D11483E7D02161C2595/libil2cpp.so" -shared -Wl,-soname,libil2cpp.so -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id --sysroot "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/platforms/android-16/arch-arm" -gcc-toolchain "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64" -target armv7-none-linux-androideabi -Wl,--wrap,sigaction -L "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a" -lgnustl_static -latomic -llog -rdynamic -fuse-ld=gold
2.  
3. /usr/bin/ld.gold: fatal error: /home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/platforms/android-16/arch-arm/usr/lib/../lib/crtbegin_so.o: unsupported ELF machine number 40
4. clang++: error: linker command failed with exit code 1 (use -v to see invocation)

Update
I tried to build AMRv7(log above and Editor.log).
When I try to build AMR64 this part is a little different, what I get:

Code (CSharp):

1. il2cpp.exe didn't catch exception: Unity.IL2CPP.Building.BuilderFailedException: /home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ @"/tmp/tmp767af960.tmp" -o "/home/marcin/Workspace/games/test 2019.2.17/Library/il2cpp_android_arm64-v8a/il2cpp_cache/linkresult_18B639A856F981E6C6C8FFCF00A937FD/libil2cpp.so" -shared -Wl,-soname,libil2cpp.so -Wl,--no-undefined -Wl,-z,noexecstack -Wl,--gc-sections -Wl,--build-id --sysroot "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/platforms/android-21/arch-arm64" -gcc-toolchain "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64" -target aarch64-none-linux-android -Wl,--wrap,sigaction -L "/home/marcin/Unity/Hub/Editor/2019.2.17f1/Editor/Data/PlaybackEngines/AndroidPlayer/NDK/sources/cxx-stl/gnu-libstdc++/4.9/libs/arm64-v8a" -lgnustl_static -latomic -llog -rdynamic -fuse-ld=bfd
2.  
3. /usr/bin/ld.bfd: unrecognised emulation mode: aarch64linux
4. Supported emulations: elf_x86_64 elf32_x86_64 elf_i386 elf_iamcu i386linux elf_l1om elf_k1om i386pep i386pe
5. clang++: error: linker command failed with exit code 1 (use -v to see invocation)
6.  

 

@Tautvydas-Zilys no worries, I am really grateful for the time you invested already.
Will try maybe to download NDK separately and use that one instead of NDK provided by Unity.

 

I switched to freshly downloaded android-ndk-r16b and ... no more issues.
I don't know what is changed in the Unity version of the NDK, is it just more permissions issues?
For now will stick with the tools not provided by Unity.

 

I confirm, same problem and same solution here
Unity 2019.2.20f1, Ubuntu 18.04

 

I am on 2019.3 and Ubuntu 19.10, and have spent hours trying to build on Android with no luck, why is it so complicated?

Currently, I am stuck with the built in tools complaining about "/usr/bin/ld.bfd: unrecognised emulation mode: aarch64linux"

Trying external tools, I cannot even get the SDK/NDK to detect properly or yet alone even running

(Edit: oh yeah, also the editor becomes unable to close after a build failure, which makes me resort to find it and manually killing from a terminal)