Android keystore stopped working

Question

Just recently I have had a problem with a key store. I know there are plenty of questions about this problem already. I have read them all and Googled furiously.

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Answer 1

I had the same problem and I tried everything that is suggested in this thread but nothing was able to save my alias password. The point is that I was absolutely sure about the password, since I had updated the app four times already. I was getting the "Keystore was tampered with, or password was incorrect" message.

The solution

It appears that at the creation of the keystore using eclipse, a space character was added in front of the password!

This nasty bug was apparently fixed at a later version rendering me unable to sign my app with the password I thought was the correct one.

Based on this SO link: Ant fails to build signed apk after updating to android v20 I would suggest that you try adding a space character before of after your password.