Error 6001 When Deploying a VeriStand Project Using the FPGA Add-On

Updated Nov 28, 2025

Reported In

Software

  • VeriStand Custom Devices
  • LabVIEW FPGA Module
  • VeriStand 2020 R6
  • LabVIEW 2020

Issue Details

I have a LabVIEW-built FPGA bitfile that is deploying to VS through the FPGA addon. When Scalar IO is added to the Custom Device, the deployment shows the following error:

NI VeriStand: Error occurred at the following location: "Targets/Controller/Custom Devices/FPGA Addon" Error 6001 occurred at Project Window.lvlib:Project Window.vi >> Project Window.lvlib:Command Loop.vi >> Project Window.lvlib:Connect to System.vi This error code is undefined ...

 

Have I configured something wrong in my VeriStand project?

Solution

This occurs because the session reference of the custom device is lost if no scalar inputs are included. This is a known issue, fixed in the FPGA Addon Custom Device 23.0.0 (2023 Q1) version. If upgrading the custom device is not feasible you can add a scalar input to the project and the error will go away.

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