Error Fix for Autodesk Seek Plugin for Revit 2017

From the IMAGINiT Technologies Support blog:

You may bump into an error running Revit 2017 with the Autodesk Seek plugin installed.

Error message:

"Revit cannot run the external application "Autodesk Seek Plugin for Revit". Contact the provider for assistance. Information they provided to Revit about their identity: Autodesk, www.autodesk.com.

System.NullReferenceException 
System.NullReferenceException: Object reference not set to an instance of an object. 
at 
Autodesk.Seek.Plugin.For.Revit.ExternalApp.createRibbonButton..."

To resolve the problem:

Rename the folder RevitPlugin to 111.-RevitPlugin (or you can use a different name or even delete it):

C:\Users\<<UsersLoginName>>\AppData\Roaming\Autodesk\Seek\RevitPlugin

Then go into Control Panel > Programs and Features and search for Seek, select it and click Repair.

It will automatically recreate the folder, replacing a corrupted .ini file.

There's more information available on the IMAGINiT Technologies blog.