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After changing my PC and publishing a new release I got this error on Logcat when I was trying to install the app and the app not installed I know this is signing issue and I have to uninstall the app and reinstall in again this is not acceptable in my case because we have many users for the app

Can you please help

Farah Mobi
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    Possible duplicate of [Signatures do not match](https://stackoverflow.com/questions/31489567/manually-installing-an-updated-apk-fails-with-signatures-do-not-match-the-previ?lq=1), also, try checking your signing key. Previous apk must have been signed with different signing key. – Vedprakash Wagh May 13 '19 at 11:57
  • It does not matter for signed apk because you will use same signin key as previous. – Manohar May 13 '19 at 12:22
  • I don't have the previous key – Farah Mobi May 14 '19 at 06:36
  • Do you forget the username and password for the key or you no longer have the .keystore file？ – Leo Zhu May 14 '19 at 08:30
  • If it is the former, it can be retrieved according to the .keystore file. If it is the latter, it is a pity that the new apk has to be packaged with the new key – Leo Zhu May 14 '19 at 09:44

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