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Resolved (Case 1412113)[BuildError] OSX 12.3 and Unity 2020.3 - constant build errors

Discussion in 'WebGL' started by matt_cauldron, Mar 20, 2022.

  1. noway2000


    Jul 6, 2022
    Just a heads up, this works perfectly for my students. We are using 2020.3 because most of the tutorials on Unity Learn were created with this version. When our classroom updated to Apple OSX 12.6 Monterey, none of our students could publish to WebGL Unity Play without the "No such file or directory" compiler error.

    STEP 1: Install Python 2 from I didn't need to even shut down or restart Unity.

    STEP 2: Add the PreBuildProcessing.cs script to the root Asset folder in your project. I simply created a Unity package and sent it to all of my student's computers. This has to be done once for any new projects.

    I look forward to Unity 2020.3.40f1 so our students don't have to keep doing this. My only other wish is that Gzip would be the default compression as the Brotli compression seems to cause many "WebGL stuck loading at 90%" issues on Unity Play.
    sama-van likes this.
  2. owensavag8


    Dec 16, 2022
    how did you end up getting this to work?
  3. sama-van


    Jun 2, 2009
    Worked a charm following Step 1 & 2 ! :)
    (Unity 202.3.34f1, Mac OS Ventura 13.2, M1Pro)