Bug [SOLVED] ubuntu webgl build fails on empty project

[SOLUTION part 1 for error msg: /BeeSettings/offline/bee.exe]
sudo apt-get -q update
sudo apt-get -q install -y --no-install-recommends --allow-downgrades python build-essential clang
sudo apt-get clean
sudo rm -rf /var/lib/apt/lists/
[/SOLUTION]

[SOLUTION part 2 for error message libtinfo.so.5: cannot open shared object file: No such file or directory]

sudo apt install libtinfo5

#if you get a message about Package 'libtinfo5' has no installation candidate
sudo add-apt-repository universe
sudo apt-get update
sudo apt install libtinfo5
[/SOLUTION]

UPDATE: I just did a fresh install on kubuntu 21.10 and whilst solution part 1 fixes the 'BeeSettings/offline/bee.exe' error message, there is a new error message that follows:
'libtinfo.so.5: cannot open shared object file: No such file or directory
ERROR:root:compiler frontend failed to generate LLVM bitcode, halting'. This error can be resolved by running [SOLUTION part 2] with those two solutions executed I am able to build webGL on a fresh install of kubuntu 21.10 running 2020.3.28f1 LTS. hope this helps

Keeping this for anyone in the future having the same problem. I would appreciate it if a mod can move this to the linux forum as it would probably be more appropriate there.

Running unity on Linux:
Ubuntu 20.04.2 LTS

Unity Version tested
2020.2.6f
2020.2.7f

Install unity with webGL package. Create an empty project->switch platform to webGL->build

build fails on the IL2CPP stage:
/home/kp/Unity/Hub/Editor/2020.2.7f1/Editor/Data/il2cpp/build/BeeSettings/offline/bee.exe exited after 9945 ms.
System.ComponentModel.Win32Exception (2): No such file or directory


complete trace

/home/kp/Unity/Hub/Editor/2020.2.7f1/Editor/Data/il2cpp/build/BeeSettings/offline/bee.exe exited after 9945 ms.
System.ComponentModel.Win32Exception (2): No such file or directory
at System.Diagnostics.Process.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start()
at Unity.IL2CPP.Shell.SetupAndStart(ExecuteContext context, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 423
at Unity.IL2CPP.Shell.ExecuteAsync(ExecuteArgs executeArgs, IExecuteController controller, Boolean asyncMode) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 299
at Unity.IL2CPP.Shell.Execute(ExecuteArgs executeArgs, IExecuteController controller) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Shell/Shell.cs:line 355
at Unity.IL2CPP.Building.CppProgramBuilder.ProvideObjectFile(IntermediateObjectFileCompilationData data) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/CppProgramBuilder.cs:line 334
at Unity.IL2CPP.Building.ParallelFor.<>c__DisplayClass1_0`2.<RunWithResult>b__0(Object o) in /Users/bokken/build/output/unity/il2cpp/Unity.IL2CPP.Building/ParallelFor.cs:line 73

Unity version 19.4.20f1 (LTS) also fails on the I2CPP with the same error

Any help would be greatly appreciated-this project is somewhat urgent,

WebGL builds fine on Windows.

Thank you.

 

I am getting the same errors. I tried the solution but it didn't work for me.

 

This stills happens on 2020 LTS.

 

I just updated my solution with a part 2. I was able to compile WebGL on a fresh install of kubuntu 21.1 running unity 2020.3.28f1 LTS. Hope this helps