title: Google Play Store Update .apk with new keystore - React Native Expo
body: <p>I already have an app running in the PlayStore. I built it using Java.
  Now, I created a different app using React Native Expo, and it is much better. However, when I try to update the old one in the PlayStore I get these error messages:</p>
  <p>You uploaded an APK that is not signed with the upload certificate. You must use the same certificate. The upload certificate has fingerprint:
  SHA1: 53:85:93:54:AC:9D:6C:E1:18:F6:1D:F8:A1:6C:FF:90:1B:05:A3:FB
  and the certificate used to sign the APK that you uploaded has fingerprint:
  SHA1: 1F:19:B9:47:1B:EF:7C:AB:FB:A1:27:C4:1D:40:4B:EC:1B:0D:64:34</p>
  <p>Version code 2 has already been used. Try another version code.</p>
  <p>Your APK or Android App Bundle needs to have the package name moutamadris.ma.</p>
  <p>I can fix the version and package name issues; however, I have no idea how to tackle the first problem! I already had a keystore from the first app, uploaded it in expo; and then rebuilt the app and uploaded but it didn't work.</p>
  <p>Can anyone please help me on this one?
  Thanks</p>