You may come across the following error when running a Component Cross Reference
Some of the circuit breaker symbols in the IEC2, IEC4 and IEC60617 have an incorrect value in one of the parent components attributes (CONTACT) causing this issue.
It is very easy to rectify:
Close the dialogue and right click on the component
Double left click on the component to invoke EATTEDIT
Remove the NO value out of the CONTACT attribute
N.B. This should only be done on parent components where you have an error.