Symptoms of the presence of an execution error

When a job runs and execution errors are present the first indication is in the contents of the run summary sent to the screen, the LOG file and the IDE process window.  For the example executcl.gms the LOG file appears as follows

--- Starting compilation

--- EXECUTCL.GMS(12) 1 Mb

--- Starting execution

--- EXECUTCL.GMS(11) 1 Mb 1 Error

*** Exec Error 10 at line 11

    Illegal arguments in ** operation

--- EXECUTCL.GMS(11) 1 Mb 2 Errors

*** Exec Error 0 at line 11

    Division by zero

--- EXECUTCL.GMS(12) 1 Mb 2 Errors

*** Status: Execution error(s)

showing the presence of two types of execution errors.  The Fixing Execution Errors chapter shows how to find and fix these.