Invalid credentials (missing or invalid oAuth token)

Question

Since last Feb 20th, while trying to access the Google Drive through Google Picker, i am getting the following error:

"Invalid credentials (missing or invalid oAuth token)"

The application feature has been working since the beggining, and now it has stopped working.

Anyone can enlight me on this matter?

Thanks,

Answer 1

They now require OAuth tokens for everyone requesting Views that deal with user data.

Check this announcement, it contains the details and it helped in my case.