254.  INVALID PARAMETER ARGUMENT FOR @SET( PARAM, VALUE).

The @SET() function can be used in a Calc section to set any of LINGO’s parameters .  You must provide the parameter’s name as text, and a permissible value for the parameter.  For instance, to turn set the iteration limit to one million, you would use @SET( ‘ITRLIM’, 1.e6). You can refer to documentation on the SET command to learn all the parameters and their names.