Using server: https://iosbuildservertest.appinventor.mit.edu/ building iOS version (.ipa of for App Store) is working fine, but when building Android version (.apk or .aab), it fails, and I get the following error:
It used to work. Of course, I can use official Android server, but as I am testing my App for both OS, I want to use one platform to have a single version of my project.