It appears that due to recent changes to how Google and YouTube account access works, IF you have set up 2-step verification in your Google account (meaning you no longer login to YouTube with a separate YouTube user name, but you use your Google account user name, which is likely your Google email) you will not be able to post videos to your own YouTube channel until you create an application specific password in your Google account. Please check Google help for how to do this. Thanks a lot Google for making our lives safer!
To learn more go to https://www.google.com/settings/security and then select Manage Access and create an application specific password, and then copy and paste that password, along with your login name, in our profile page for linking.
