Daq Assistant doesn't open

[chops88]

Other people have made similar complaints. I have LV 2020 32 bit installed. I need to keep using it for now as some 3rd party tools aren't licensed/activated for 2021 - which I also own. However, I just installed LV 2024 to trial it, and upgraded DAQmx to 2024.

It appears as though that broke DAQ Assistant, but only in 2020. It opens fine in MAX, and LV 2021, didn't get around to trialing 2024 yet.

I then uninstalled DAQmx 2024, rebooted and reinstalled 2023 Q1, rebooted. Same problem.

Uninstalled DAQmx 2023 and installed 21.x, same problem.

Tearing my hair out here... and uninstalling it takes 30-40 mins every time so rather than waste another 3-6 hrs of install/uninstall trial and error, here I am in the forums asking for a hail mary.

Thanks!

[GerdW]

Hi chops,

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@chops88 wrote:

Other people have made similar complaints. I have LV 2020 32 bit installed. I need to keep using it for now as some 3rd party tools aren't licensed/activated for 2021 - which I also own. However, I just installed LV 2024 to trial it, and upgraded DAQmx to 2024.

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That's your main problem!

Drivers only support the current version and 3 versions before (a 4 year interval), so DAQmx2024 support LV2024 down to LV2021. Any support for older LabVIEW versions (like your LV2020) is removed automatically…

Solution:

• Setup your computer with a fresh Windows installation and install all your LV2020 stuff again.
• Never install anything newer than that on your important development computer!
• Use virtual machines (or other computers) to support other LabVIEW versions…

[chops88]

Many thanks for the reply. Talk about a sledgehammer solution, though. There are so many reasons I dont want to reinstall windows from scratch so Im going to try to uninstall *everything* NI first, then reinstall. If that doesnt work, Ill roll back to a system disk backup.

NI software is fine... when its working. When it doesnt work, good god the un/installation processes are lengthy and hellish.

[JÞB]

You likely need to uninstall NI DAQmx Configuration support 2024 as well as DAQmx. The DAQ Assistant is actually part of a separate product.

[Bob_Schor]

When you go to "uninstall", there is (only) one safe way to do it. 

1. Open NI Package Manager (a.k.a. NIPM),
2.  Uncheck "Products Only"
3. Check the box that says "Name", which selects everything (except NI Package Manager).
4. Click "Remove".  That's the first step.
5. Reboot when it finishes.
6. Again, open NIPM.
7. It should show no Packages, leaving itself as the only thing that can be removed.  It will warn you, but that's what you want to do.  Select it, and remove it.
8. Reboot.

I recommend that you resist the temptation to remove Folders, though if you follow the earlier advice, you should be able to safely remove C:\Program Files\National Instruments\LabVIEW 2024 safely (since you won't be re-installing it if you want to keep using your older LabVIEW versions).

Bob Schor 

[chops88]

Thank you all for the advice on this. Definitely learned a few lessons about NI software resiliency, or lack thereof.

I ended up solving by rolling back to an earlier image of my system disk, figuring that would be faster than removing and reinstalling all NI products, and definitely faster than a fresh windows install with the 40 billion applications and tweaks I'd need to install/make.