IEA341A

Explanation
A system parameter specified during initialization
was incorrect. Previous messages might diagnose the specific error
in the parameter specification.
In the message text: prm
The incorrect system parameter.

System action
The system prompts the operator for a reply.

Operator response
Enter the parameter correctly or press ENTER.
If you press ENTER, any system defaults for the parameter are used. Examples: 
SVC={aa         }   
          {(aa,bb,...)}   
ALLOC={aa         } 
               {(aa,bb,...)} 
SCH={(aa)       }   
          {(aa,L)     }   
          {(aa,bb..)  }   
          {(aa,bb..,L)}
If prm is DUMP, ensure that TA was not specified
in the SYS1.PARMLIB dump command.

Source
Nucleus initialization program (NIP)

Module
IEAVNP08