One or more field types are not installed properly. Go to the list settings page to delete these fields.0x81020014

Recently came across this error message after migrating a site from Sharepoint 2007 to Sharepoint 2010. Apparently it is an issue where the relationships list is not updated when migrating a site.

The Relationships List can be found at http://(yoursiteurl)/Relationships%20List/allitems.aspx

As the site collection administrator deactivate the SharePoint Server Publishing Infrastructure feature under Site Settings for the site collection that has the issue. Then delete the Relationships List - http://(yoursiteurl)/Relationships%20List/allitems.aspx.

Re-activate the SharePoint Server Publishing Infrastructure feature and the Relationships List will be recreated, this will correct the problem.