I know there are a zillion posts asking the same question, but it looks like the help you receive will be specific to your build error, which is why I created this separate post, instead of asking on someone else’s.
When trying to build my Android app, I get an error message repeatedly (tried 3 or 4 times) that says “Unknown error, contact support for more details”. There is NOT an error log included in the email or on the build page, unfortunately.
I tried it multiple times with different runtime versions, and they all failed. I also tried generating a new keystore, which also failed. My keystore was generated through the Command Prompt.
What should I do? Can anyone help me? Should I send someone my App ID Code?