The subRefs attribute on the following domain object has a value that does not correspond to a valid object. This will prevent ...

The subRefs attribute on the following domain object has a value that does not correspond to a valid object. This will prevent Active Directory Domain Services from functioning normally. 
 
Domain object: 
%1 
Value: 
%2 
 
User Action 
Run the semantic database analysis option in the Dsdbutil tool to correct the problem. 
 
Additional Data 
Error value:
%3 %4