Resolving:
1. Search Keychain Access
2. [KEYCHAIN] Login | [CATEGORY] Passwords
3. Look for you email address and double click. <it might not be necessary but just try this>
4. [ACCESS CONTROL] choose "allow all application to access this item".
5. Rebuild to your phone. If you have error choose a virtual device and build (to reset the build objects). Then choose to rebuild to your phone again.