Skip to main content

SOLIDWORKS macro error when preconditions are not met

Symptoms​

Running the SOLIDWORKS macro which processes the active model or selection produces Run-time Error '91': Object variable or With block variable not set error or Run-time error '13': Type mismatch error or misbehaves in any other way.

'Run-time error '13': Type mismatch' error when running the macro{ width=320 height=191 }

Cause​

Depending on the functionality of the macro it may require certain preconditions to be met, such as part or assembly opened or specific objects (e.g. body, feature, dimension etc.) selected.

If the errors are not handling properly in the macro and user friendly message is not displayed VBA environment will fail.

Resolution​

  • Investigate the preconditions of the macro. If possible contact the developer of the macro or compare the differences between conditions where it works and not
  • Investigate the code. Check what code line is highlighted when error happens. For example if swModel or Part variable is Nothing then it is required for the model to be open. If object assigned from GetSelectedObjectX method is Nothing then incorrect or no selection was made prior of running the macro

Run-time tooltip displaying that the pointer is Nothing{ width=400 height=175 }