Error Messages/40257

Error message examples

 The first parameter to function OptWrite, «lp», must be of type LPTYPE.

 The first parameter to function WorksheetCell, «Workbook», must be of type
 EXCELWORKBOOKTYPE.

Cause

You passed a parameter of a different type than the one expected.

Optimizer functions that only work with linear programs (LPs) will issue this message when passed a quadratic or non-linear program.

Remedies

Correct the parameter passed to the function to the type expected by the function.

For an optimization problem, you will either need to remove the non-linearities in your model, or you probably don't have the option to use the function.

See Also

• Function calls and parameters
• Function Parameter Qualifiers
• Optimization Characteristics
• OptWrite
• WorksheetCell