This may be due to the file being used by two projects at the same time.
In any case, I would like to ask you to attach the file and the projects so that I can look into your problem. You can attach the files here or in a private message on the forum.
I there any option to use APK (Android APP) in BAS?
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It is possible, but not all and through the Emulator
https://developer.android.com/studio/command-line/adb