Attempting to tradition build script and I received an error message

I am exercising IDL version 8. I am attempting to tradition build script and I received an error message. If somebody has an idea to solve this please share. Thanks.

Error caught
% Attempt to call undefined procedure/function: “Xmanager”
% Execution halted at : TT_LOGON
% TECHTIP70
% IDLRTMAIN
% $MAIN$
OK Cancel
