Upload Fail With Apk With 2 Certificates Entries That Are Valid

I am trying to update my app in Google Developer, but receive the error: >Upload failed > >You uploaded an APK that is signed with a different certificate to your >prev

Solution 1:

I discovered the solution. I had two entries because I misspelled my alias at sometime and it produced a new entry in the keystore file.

I used the keytool utility to list the contents of the keystore and to delete the wrong alias.

keytool -list -v -keystore -- to list contents keytool -delete -alias "" -keystore