Error -18531 Using IVI Step Types in TestStand

Updated Jul 20, 2020

Reported In


  • TestStand

Issue Details

I'm running a sequence file on TestStand and I getting the following error:

The type library information for 'TestStand ivi Step Types' was not found.
Ensure that the server is registered on the computer.

Error code: -18531, An error occurred reading a AntiveX Automation server type library.

Below a screenshot with the message:

A part of this, my IVI steps have the <None> adapter.

How can I solve this issue?


Please make sure you have installed the IVI steps in TestStand, if you are using TestStand 2019 refer to the following article to install them IVI Step Types for TestStand 2019 Are Missing.

After installing the IVI steps, active your version of TestStand using the TestStand Version Selector.