Problem

When the document dataloader is run, the standard document dataloader errors with a message stating "Invalid value for Document Location", even though the document location was filled in properly.

Solution

This has been reported as bug VSTS #146934 - "Document dataload fails due to required document location attribute error".

Workaround:

1. Use the "InAssetManagement" or "InDocumentManagementSystem" entries in the Document Location field instead of "Asset Management" or "Document Management System".
                   
OR

2. Create the documents manually.