Symptoms
You migrate content with Copy structure and content or Copy content only and get the following error:
A method from the WebPartPages service of SharePoint has been deprecated and is preventing the successful copy of a web part, it might be missing or corrupted. Please update ShareGate to the latest version and try again.
Error Code
IN-955-401
Details
Microsoft removed some SharePoint services that ShareGate Migrate would use to migrate your web parts. Because of these changes, older app versions cannot migrate your web parts.
Solution
Update ShareGate Migrate to the latest version.