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Command Expert

Question asked by dieciduej on May 12, 2020
Latest reply on May 13, 2020 by dieciduej

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I did not see a dedicated area for Keysight's Command Expert so I will try here. I have loaded Command Expert 2019 (Build 1.9.34) and I am trying to install a New Instrument. It sees all the instruments, connected via USB, and states downloading the SCPI Command Sets but terminates with an error. Could not load file or assembly 'Ivi.Visa.Interop,......

I am running IO Libraries 18.1.24715.0, Windows 10 1909. My guess its a Windows issue. Can anyone point me in the correct direction.

Thanks,

JoeD

command expert ivi driver

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vinathan May 12, 2020 3:04 PM
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Hi JoeD,

I think some of the IVI.org installation packages like IVI Shared Components or VISA Shared Component may not have have been installed successfully or got corrupted at some point.

Can you run the log gathering .exe attached and send me the .zip file it generates. I can take a look at it to determine the best next steps.

Thanks,
Vicnesh
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- GatherIOLogs.exe.zip323.7 KB
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- dieciduej @ vinathan on May 12, 2020 4:46 PM
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  Hello Vicnesh,
  
  I ran the file and generated the zip file. How to I get it to you?
  
  JoeD
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- dieciduej @ vinathan on May 13, 2020 12:08 AM
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  Further info, I uninstalled the lot and reinstalled the IO Libraries, Command Expert and BenchVue, in that sequence. The only issue I found was when installing the Command Expert I got an error:
  
  JoeD
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uWHarry May 13, 2020 10:36 AM
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I have seen similar problems with the latest versions of IO Libs and Windows 10 when I updated from an earlier version of IO Libs. I had to uninstall IO Libs and IVI drivers and VISA drivers and delete their folders and start over. After that and reinstalling IO Libs again, it worked. There seems to be something in the drivers that doesn't update when coming from an earlier version. Anecdotal experience, but it worked.
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- dieciduej @ uWHarry on May 13, 2020 11:40 AM
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  Hello Drew,
  
  I gave that a try and did not get any errors installing Command Expert but I got a different error SCPI Command Sets:
  
  JoeD
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- dieciduej @ uWHarry on May 13, 2020 12:04 PM
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  I spoke to soon. Like an old dog learning a new trick, I Googled the Crypto error and found out:
  
  C:\ProgramData\Microsoft\Crypto\RSA
  RightClick the MachineKeys and make sure all privileges are set
  Then I tried installing the SCPI Command Sets again and IT WORKED!
  
  So it was a combination of the upgrade of the IO Suite that cause the original problem and somehow after removing & cleaning the new error. Thanks all.
  
  JoeD
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