Gmail error.PNG
Explanation
Gmail has the ability to implement a two-step verification to increase security. Control is not currently compatible with this extra security feature at this time. However, Gmail has Application Specific passwords that can be set up in the Gmail Settings.

To set up an Application Specific Password on the Gmail account, please follow this link:

https://support.google.com/accounts/answer/185833


How to generate an application-specific password
1) Visit your Google Account settings page.

2) On the left, click Security.

3) Under the "2-step verification" topic, click Manage your application specific passwords.

4) Under the Application-specific passwords section, enter a descriptive name for the application you want to authorize, such as "AdWords Editor – Desktop," then click “Generate application-specific password".

You'll then see the ASP you just created. You'll also see the name you wrote in for the device and a link to Revoke -- or cancel -- the code.

Once you click Done, you’ll never see that application-specific code again. But don't panic: You can generate a new one whenever you’re prompted for an ASP by a non-browser device or application -- even a device or application you’ve authorized before.
5) When you sign in to an application requiring an ASP, enter your ASP in the password field, and make sure you check the "Remember password" option if you want the application to remember the code.

See Also