A float fraction, character string, segment, etc., has been specified in an argument that specifies an integer. A negative integer has been specified in an argument that specifies a positive integer. An array whose array elements are not numeric has been specified in an argument that specifies a numeric array. The necessary number of array elements is not sufficient in an array that has been specified by an argument. An empty character string has been specified in an argument.
System resources are insufficient.
The size of the window that has been specified is too large. There was an illegal reference of a system variable. Confirm the form of the system variable and make it reference properly. There was an illegal setting to a system variable. Confirm the form of the system variable and set it properly.