Incremental compiler generates trouble after upgrading to b8

I was getting when entering play mode after upgrading to b8 and Burst preview 35:

Unexpected exception System.IO.FileNotFoundException: Could not load file or assembly 'Smash, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies.
File name: 'Smash, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null'
at Burst.Compiler.IL.Jit.JitCompiler.CompileMethod (Mono.Cecil.MethodReference methodReference, Burst.Compiler.IL.Jit.JitOptions jitOptions) [0x000aa] in <8ccfa83e0f984072892c29638c340c1a>:0
at Burst.Compiler.IL.Jit.JitCompilerService.Compile (Burst.Compiler.IL.Jit.JitCompilerService+CompileJob job) [0x002b2] in <8ccfa83e0f984072892c29638c340c1a>:0

While compiling job: System.Void Unity.Jobs.IJobParallelForExtensions/ParallelForJobStruct`1<Casablanca.UpdatePositionJob>::Execute(T&,System.IntPtr,System.IntPtr,Unity.Jobs.LowLevel.Unsafe.JobRanges&,System.Int32)

First I thought it was the Burst compiler, but I the error remained after downgrading to preview 34, so I removed the incremental compiler and the error went away.

 

Unity staff if probably going to ask you to submit a bug-report:
https://unity3d.com/unity/beta/guide-to-beta-testing#tab-3

... and post the bug report ID in this thread for them to pick up.

 

This is probably related to https://forum.unity.com/threads/201...-incremental-compiler-solution-within.570865/

If so, it's a known issue and fixed already. Simply upgrading the incremental compiler to latest version will fix it.

 

The problem is that I cannot reproduce the issue, I didn't back up my project before upgrading, so I don't know if filing a bug report is of any aid.

This happens even if you have the latest version previous to the upgrade, in that case so you have to remove the incremental compiler and reinstall it again.