SAS on Mainframe ERROR

[kumarsandip975]

Could you please suggest with the following error message. we are trying to access below dataset on mainframe via JCLS.

10         DATA BESTUT.IN1;                                                     
11          INFILE TEST;                                                       
12              INPUT @1   CAPPL   $5.                                         
13                    @6   CNIV    $CHAR20.                                    
14                    @26  CTAAL   PD2.                                        
15                    @28  TOMSCH  $CHAR40.; 

Error :

The library data set ABCD.DEF.FGHK is an extended format sequential data set. However, the SASE7 engine only supports DSNTYPE=BASIC or DSNTYPE=LARGE data sets.                                

 Encountered error when the V9 engine tried to determine if BESTUT has a registered secured library object location.

Library BESTUT is not in a valid format for access method SASE7. 

[SASKiwi]

Can you please provide the SAS log statements where you allocated BESTUT? Did you use a LIBNAME statement or some other method?