App is signed and notarized, but still produces the 'The application "***.app" can't be opened.' error in Catalina

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Created Mar ’21

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I've built my app, signed it with my Developer ID, and had it was successfully notarized. However, when I attempt to launch the app in macOS 10.15.7, I get the 'The application "***.app" can't be opened.' error message.

I ran all the usual checks to make sure the app is signed and notarized properly:

Code Block % codesign --verbose --verify *.app
XXX.app: valid on disk
XXX.app: satisfies its Designated Requirement
% xcrun stapler validate *.app
Processing: /path/to/*.app
The validate action worked!
% spctl --assess --verbose *.app
XXX.app: accepted
source=Notarized Developer ID

Can someone help me figure out what I am **** wrong here.

Here are the commands which I have executed:

Code Block Code Signing:
codesign --sign "Developer ID Application: *" --timestamp --options runtime --verbose=4 --strict ./*.app 
Create Zip File to send to Apple:
/usr/bin/ditto -ck -rsrc --sequesterRsrc --keepParent ./*.app  ./*.zip
Notorize Zip File:
xcrun altool --notarize-app --primary-bundle-id "bundle-id" --username myusername --password mypassword --file ./*.zip
Staple to App File.
xcrun stapler staple ./*.app

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Answer 1

DTS Engineer OP

Apple

Mar ’21

Gatekeeper rejections like this are tricky to debug. You can find some hints in this thread. If that doesn’t turn up anything useful, my advice is that you open a DTS tech support incident and I’ll dig into your specific case.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

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