i wanted to submit the game via webgl but unity showed an error during building that 'mono is not recognized as internal or external command' so i had to submit it in downloadable windoows format
I've found that with file non-recognition errors rebuilding the project library is usually effective, BUT it also could be your antivirus blocking MonoBleedingEdge, which is much faster to temporarily fix.
Also, it's possible to have both the windows build and webBuild available on the same page if such a change would be allowed?