I have followed the steps in this documentation for signing my .app file
Signing an APP Package File - Business Central | Microsoft Docs
I get stuck on this error when running the sign tool with my .app and .pfx certificate
SignTool Error: This file format cannot be signed because it is not recognized.
I have removed all spaces within the .app file name.
How do I fix this error?
Also, is signing an app really required for App Source deployment?