Could not find a valid clang executable at clang

Hello,

I'm having problems with Unity when building on Linux, meaning I can't compile my game.

The issue I'm having is that I changed the scripting backend to il2cpp (Mono was dysfunctionally slow), but it can't build because of an error. The log message I'm getting is this:

Code (CSharp):

1. Failed running /home/kettle/Unity/Hub/Editor/2019.3.15f1/Editor/Data/il2cpp/build/deploy/net471/il2cpp.exe --convert-to-cpp --emit-null-checks --enable-array-bounds-check --dotnetprofile="unityaot" --compile-cpp --libil2cpp-static --platform="Linux" --architecture="x64" --configuration="Release" --outputpath="/home/kettle/Programming/Kettle3D.dev/Kettle3D/game/Temp/StagingArea/Data/Native/GameAssembly.so" --cachedirectory="/home/kettle/Programming/Kettle3D.dev/Kettle3D/game/Assets/../Library/il2cpp_cache" --profiler-report --map-file-parser="/home/kettle/Unity/Hub/Editor/2019.3.15f1/Editor/Data/Tools/MapFileParser/MapFileParser" --directory="/home/kettle/Programming/Kettle3D.dev/Kettle3D/game/Temp/StagingArea/Data/Managed" --generatedcppdir="/home/kettle/Programming/Kettle3D.dev/Kettle3D/game/Temp/StagingArea/Data/il2cppOutput"
2.  
3. stdout:
4. il2cpp.exe didn't catch exception: System.InvalidOperationException: C++ code builder is unable to build C++ code for Linux: Could not find valid clang executable at clang
5.  at Unity.IL2CPP.Building.CppProgramBuilder.ThrowIfCannotBuildInCurrentEnvironment () [0x00051] in <248b4a691c5d4e1b965d90f17ea422c0>:0
6.  at Unity.IL2CPP.Building.CppProgramBuilder.Build (Unity.IL2CPP.Building.Statistics.IBuildStatistics& statistics) [0x00001] in <248b4a691c5d4e1b965d90f17ea422c0>:0
7.  at Unity.IL2CPP.Building.Statistics.BuildingTestRunnerHelper.BuildAndLogStatsForTestRunner (Unity.IL2CPP.Building.CppProgramBuilder builder, Unity.IL2CPP.Building.Statistics.IBuildStatistics& statistics) [0x00001] in <248b4a691c5d4e1b965d90f17ea422c0>:0
8.  at il2cpp.Program.DoRun (System.String[] args, System.Collections.Generic.List`1[T] foundAssemblies) [0x005bc] in <3d7b04f5e89e4d189194b279bc8abf31>:0
9.  at il2cpp.Program.Run (System.String[] args, System.Boolean setInvariantCulture) [0x00042] in <3d7b04f5e89e4d189194b279bc8abf31>:0
10.  at il2cpp.Program.Main (System.String[] args) [0x00002] in <3d7b04f5e89e4d189194b279bc8abf31>:0

I've seen other threads that have similar errors with this, but none of the solutions work.

The first solution I got:

Yes, I've done that.

The next solution:

Yes, it is.

I'm not sure why Unity can't find clang, but it's in plain sight.

I'm running a fresh installation of Linux Mint (20 Cinnamon) on an AMD A6 64-bit.

 

My unity found my clang installation, but now it says that it has no input files... Building on Linux is kind of a nightmare huh?