Problem

During the migration from SharePoint On-Premises to Google Site, your’re getting the following error: “Cannot init document types” during the initialization of the connection to Google in the GUI (for instance, when clicking on the “Verify” button in the configuration panel).

Cause

For some reason, the computer where the GUI is installed cannot download following file:
https://sites.google.com/site/cloudiwayonline/csvfiles/googleDriveMimeTypes.csv.

Resolution

Download the file above manually from another computer (this file is public on the internet) and place it in the GUI installation folder (normally C:\Program Files (x86)\cloudiway\SharepointXFER\Gui).