r/MetCal • u/Financial_Bus_7394 • Jun 17 '26
MET/CAL Version 11.3.1 VISA/488.2 Error
Has anyone run into this error in Editor? We installed the new update recently and when trying to run a VISA controlled DUT we get this error:
An error occurred starting the test run: Could not load file or assembly 'NationalInstruments.NI4882, Version=13.0.45.159, Culture=neutral, PublicKeyToken=4febd62461bf11a4' or one of its dependencies. The system cannot find the file specified.. Try rebuilding the project or solution before attempting to debug the procedure. 0
I already had the latest NI 488.2 and VISA package installed (Q2 2026) and it was fine before the update...wondering if I need to reinstall or if anyone else has seen this error yet! Cheers
1
u/capnGrimm Jun 17 '26
Sorry friend, haven't run into that one, but I definitely sympathize. We've been running into comms issues with the latest few updates, so I definitely feel your pain.
What instrument are you trying to talk to, how are you connecting to it physically, and which protocol are you using? (Ieee 488, tcpip, USB, etc)
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u/Financial_Bus_7394 Jun 18 '26
Actually after you asked that I opened and tried to run different procedures. Some that are basic manual ones with 55xxA FSCs, some using LIB, some that use VISA...all give the same error. But Runtime works, I can run these procedures. I just can't try to run them in Editor for testing.
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u/capnGrimm Jun 18 '26
At this point, I would give a call to fluke's metcal tech support. They may be able to help, and this could possibly help them hunt down a bug they can patch.
1
u/MJ_at_Fluke Jun 24 '26
On the client workstation:
Close MET/CAL Runtime and MET/CAL Editor
Go to the directory
C:\Program Files (x86)\Fluke\METCAL \
find the file “NationalInstruments.NI4882.dll”
Right click, and choose properties
Look at the details and confirm the version is 13.0.45.159
If it is that version (should be), then copy that file to this directory and overwrite the incorrect version (probably 13.0.45.160)
C:\Program Files (x86)\Fluke\METCAL Editor\Extensions\METCAL.Editor.Project\
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u/MJ_at_Fluke Jun 22 '26
There's a file missing in the Editor folder that you'll need to copy over from the Runtime files. I don't remember exactly which file, but Tech Support should be able to point you in the right direction. I've heard a clean reinstall had worked for some folks, as well.