Flutter signing app with same key.jks not working

Issue

I developed my Flutter Android application on Windows 10 and released it internally on Google Play. Now I switched from Windows 10 to Mac and trying to update my Google Play app but getting the follwing error.

You uploaded an APK that is not signed with the upload certificate. You must use the same certificate. The upload certificate has fingerprint:

[ SHA1: 11:AF:0B:9E:B5:34:92:E7:2B:3A:53:62:C1:D5:2F:4D:81:7D:9A:95 ] and the certificate used to sign the APK you uploaded have fingerprint: [ SHA1: 00:DE:7B:1A:1E:FC:C4:5A:05:15:3C:1E:03:63:BB:34:13:0F:67:32 ]

I have used the same key.jks file to sign the app on Mac os. Is there anything I am missing?

Solution

You can print the key used to sign an apk like this:

keytool -list -printcert -jarfile app.apk

Try this on an APK signed on Windows and an APK signed on Mac. This will tell you if you are really signing with the same keystore / key. I suspect something is going wrong with your process.

Answered By - Nick Fortescue