sha-1 flutter
cmd 1 :  keytool -exportcert -v -alias androiddebugkey -keystore %USERPROFILE%/.android/debug.keystore
Enter password : android
NOTE: cmd 1 will generate unreadable SHA1 fingerprint to make it readable enter cmd2
cmd 2 :  keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%/.android/debug.keystore
Enter Password : android
