I made research on the topic, but couldn\'t find a solution:
I created a signed apk from an eclipse project, and i also have the eclipse key store. But i couldn\"t f
I had the same problem and was really frustrated with it. I have solved it and can help you with it.
1) Ensure that your key is uncorrupted and untampered. This is the reason behind most of the problems.
2) Select the path of the key in "Generate Signed APK" dialog box. This path can be anything, it doesn't actually matter.
3) Now just put your keystore password. This needs to be correct, otherwise you will get messages like "Keystore is corrupted", but it isn't.
4) After entering the password, select the Key Alias. If you enter wrong password, this field will be blank.
5) Put the Key Password same as Keystore password. This worked perfectly for me.
Hope it helps all of you. Thanks.