Lookup table node with path '{0}' can not be deleted since it is associated as a display attribute in one of the specs.
Explanation
The Lookup table node with path '{0}' can not be deleted since it is associated as a display attribute in one of the specs.
User response
Remove the Lookup Table display attribute association of the node from all of the specs where it is being used.
IBM InfoSphere Master Data Management, Version 10.1