In signed apk google plus user verification is failing

Question

Exported apk not allowing G plus authentication. Getting toast message as An internal error occured . and it is working fine with the apk of its bin folder.

Answer 1

The error was because of the SHA1 fingerprint.Previously I took my SHA1 key from

window > preference > android > build

This SHA1 fingerprint will work only for the apk of bin folder.

I should have take the SHA1 fingerprint getting while exporting or by using the Keytool.