(Hex 0x465) Error code 9: VI version (24.0) is newer than labview version (21.0)

[arichards]

Hi, 

I have this error 

I have redownloaded labview, the licenses are up to date, I have the latest version and everything was working until a VI appears to have been opened.  When I look up how to fix the problem, it just says this is a known bug with LabVIEW 2019.  Any help is greatly appreciated.  Thanks.

[GerdW]

Hi a,

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@arichards wrote:

I have redownloaded labview, the licenses are up to date, I have the latest version and everything was working until a VI appears to have been opened.  When I look up how to fix the problem, it just says this is a known bug with LabVIEW 2019.  Any help is greatly appreciated.  Thanks.

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• The error message is about LabVIEW2021, your text mentions LV2019: how does it relate?
• Why do you "redownload" LabVIEW?
• Generic answer: you cannot open VIs from newer LabVIEW versions with an older LabVIEW version…

[Thili_kiri_kaju]

You cannot open a VI that is saved in a newer version with an earlier version than that one. 

try this to convert your VI to an earlier version "https://forums.ni.com/t5/Version-Conversion/bd-p/VersionConversion"

[cordm]

Do you have multiple versions of LabVIEW installed? You may need to start LabVIEW 2024 and open the file manually. I think Windows remembers which version you used the last time and opens VIs with that version. I am almost certain I read about a wrapper that let's you choose the LabVIEW version to launch but I cannot find it right now.

[arichards]

Hi, 

I appreciate the fast response.  In an effort to be prompt: the short answer is that this halfway worked.  It worked for one VI but not another one.  I apologise but I don't have any insight as to why, I am still trying to troubleshoot it.