Types Not Recognized Error When Loading LabVIEW DLL in TestStand

Updated Nov 26, 2018

Reported In


  • TestStand
  • LabVIEW

Issue Details

I get the following message when I load my LabVIEW DLL in TestStand and select a function: 

This function does not have parameter information in the DLL or uses types not recognized by TestStand.



This error is expected because TestStand uses information from the type library of a DLL to display function prototypes and parameter information. If the type library is not present, the information cannot be displayed by TestStand.

To resolve this error, create a custom data type and add the paramenters of the DLL function manually.
Test the example located at <TestStand Public>\Examples\Fundamentals\Passing Clusters to Code Modules\Passing Clusters to Code Modules.seq and follow the instructions in Passing Clusters to Code Modules - LabVIEW .



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