title: apk with different certificate
body: <p>I'm facing a problem with the certificates, two weeks ago I made a backup of my pc, I save the project and the key.jks now in a different computer I'm trying to upgrade my app but It says this:</p>
  <blockquote>
  <p>Upload failed</p>
  <p>You uploaded an APK that is signed with a different certificate to your previous APKs. You must use the same certificate.</p>
  <p>Your existing APKs are signed with the certificate(s) with fingerprint(s):</p>
  <p>[ SHA1: 90:F7:82:F9:C0:52:98:D7:EA:F9:9C:79:B9:00:1D:61:7E:5B:C5:06 ]</p>
  <p>and the certificate(s) used to sign the APK you uploaded have fingerprint(s):</p>
  <p>[ SHA1: 7B:67:D7:7B:C6:EB:53:49:94:41:86:89:C0:7A:2B:89:5B:0B:AC:A8 ]</p>
  </blockquote>
  <p>Is there a way that I can fix this problem, the app has active users and I don't want to loose them</p>