Google Drive "Package Not Found"

Hello,
I have been fighting this for two days now…

I have the api and client credentials in settings.
I have Google Drive and Google Picker enabled.
I have the Google Drive button and can browse my files on my Google drive in the Picker window.
I can select a file and attach it. All of that goes as expected —

After attaching the file and clicking update, I click the preview button to view the download page. No information or file size is present and clicking the download link gives a “Package Not Found” error. I noticed that the attached file shows docs.google.com as the url, but the file url appears to be drive.google.com. Am I doing something wrong or did Google change something on you?

Thanks!

Never-mind, I figured it out.

The download post page has to be set to public or it won’t work.
Any testing has to be done on a public page, or it will not download anything, local file or not.

Hope this helps someone.