"illegal value for number of workers, %s"
*Cause: Called create worker processes with an illegal number of workers
*Action: Make sure that the number of workers value is greater than 0 and
less than the maximum value for the platform (normally 32767). If
this error occurs from a Data Pump client (e.g. expdp or impdp)
and you specified the parallel parameter, try the operation again
with a smaller value for the parallel parameter. If the error
occurs again, contact Oracle Customer Support and report the error.