Cannot drop an operator binding with dependent objects

The operator binding that is being dropped has dependent objects.

How to Solve :

Either drop the dependent objects first and then issue the ALTER OPERATOR DROP BINDING command or specify the FORCE option with ALTER OPERATOR DROP BINDING.

cannot call this function from a non-master process

Called a Data Pump process model function from a process which is not a master process.

How to Solve :

Create a master process first. Then call the function from the master process. If this error occurs from a Data Pump client (e.g. expdp or impdp), try the operation again. If the error occurs again, contact Oracle Customer Support and report the error.

No primary operator bindings found for ancillary binding #string

At least one ancillary binding of the specified operator could not be validated because all of its associated primary operator bindings have been dropped.

Either drop the ancillary binding whose primary operators are missing, or drop the entire operator, if this is the only binding. This binding cannot be re-validated.

Specified registration id does not exist

An incorrect regid value was passed to dbms_chnf procedure.

pass the correct regid value.

Allocation of process descriptor failed.

During creation of a master process or a worker process, a failure occurred allocating a process descriptor for the process.

Try the operation again. If the error occurs again, contact Oracle Customer Support and report the error.