I previously had a mobile app that I'd packaged up and run successfully. In between then and now, we've upgraded from PB 2017 to PB 2019 R2, and upgraded our production environment to Azure. I've also upgraded to the developer version of PowerServer 2020 Build 2323 on our production server.
Now when I try to package the mobile app to run against the production databases, I get the error:
Failed to package because the profile verification has failed. Please modify the profile and try again.
Error: No application engineering file found, please republish the application.
I think the error means that PowerServer can't find the files that were deployed to the production power server, as specified in the App URL setting? I've checked, and the files are there, and I'm setting up the App URL exactly as it's set up in the PowerServer Profile Configuration, appended with the app name. The "Test PowerServer Settings" returns "Connected to PowerServer 'Prod' successfully!"
I've tried using different PowerServer templates (for build 2333, 2323, and 2170), in combination with different URLs, and only ever get the same error. What else should I try?