A disallowed operation on a default shelf was attempted.
#6017 Run-time catchable error
A disallowed operation on a default shelf was attempted.
Additional Information
The 'T' action cannot be applied to STREAM/COUNTER/SWITCH 'X'.
where T is the action performed on the shelf and X is the name of the
shelf
Explanation
This error occurs when an attempt is made to perform an operation
(e.g., modify the key) of a shelf that is not modifiable.