Unable to export to HTML5: FileNotFoundException: Could not find build.bc

Unity Engine
1

FileNotFoundException: Could not find file “\Temp\StagingArea\Data\Native\build.bc”, where is the save location for the project.
What is this missing file, and how can I fix the problem? Exporting works when exporting to windows, mac and linux. I have not deleted any core files (that I know of) and that file is not in the recycle bin. The process gets up to the IL2CPP stage, then gives up and deletes the folder which was being exported to. Using 2D lwrp in unity version 2019.2.6f1.
What do I need to do to get this exported to web?

Source code available here.

2

Bump. Still looking for a solution to export this to WebGL

3

Bump again. I really want to export to web, is there anything I can do about this alleged missing file? What even is build.bc???

4

I just started getting this on 2018.4, Unity what is this?!

5

I’m getting this error on 2019.4.6, Anyone solved this ?