Cause
The user attempted to perform an operation that will update or delete a read-only task or object.
The user attempted to perform an operation that will update or delete a read-only task or object.
Adjust the READ_ONLY property for the object and retry the operation.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm
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