Hey everyone, update on the various issues on this thread. Here's the things I believe are true: 1) When a player build fails, Unity does not do a great job of concisely giving the most actionable error. 2) Because of #1 many people in this thread think "they are having the same issue", whereas in reality I most people in this thread are having different issues. 3) I did screenshares with some of you in this thread (thanks so much!) that leads me to #2. The issues we discovered in those screenshares were: - A Unity bug that happens when you build for IL2CPP and you have a custom unity package that happens to end in the ".framework" extension. Unity misidentifies this unity package as a "Mac OS plugin", as those also have the .framework extension. - A windows system that had a custom shell manager installed that when googling around turned out to cause widespread cases of "cmd.exe no longer works". uninstalling that shell manager made cmd.exe work again, which made the builds succeed again. Action items for us at Unity following from the above: - we'll fix the bug with packages ending in the name .framework. - we have internally landed (currently targeting unity 2023) a change that improves error reporting on failed builds, and makes it easier to find what the actual problem was. I think the existence of this thread should make us reconsider if we should instead target 2022 for the fix (2022 has internally already branched off) - since several of the problems identified in this thread were related to cmd.exe not working properly we should 1) prioritise the work to move away from invoking things through cmd.exe 2) detect this failure case specifically and give a very specific error message helping both users and people like me trying to help users realise that there is a problem with invoking cmd.exe on the machine.