This VI is part of a LabVIEW class. No part of the class is executable at this time because one of the member VIs is missing. However I am not missing a vi

[waldemar.hersacher]

BrokenArrow wrote:

Waldemar - Where did you pick up that trick? 

I am

a) prying

b) engineer

c) programmer

Yes most of the time I get a new file format  before my eyes I use a text editor to open the file. Surprisingly often files are in text format and most newer files are XML.

[Broken_Arrow]

This mess with the broken class and the lack of knowledge of how it got that way reminds me of when MAX gets corrupted - there's nothing you can do inside MAX to fix it, and the fixes are unpublished tribal knowledge.  Yes, unpublished tribal knowledge.

[Ben]

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 James G wrote:

I really need to understand what happened here and how to recover/avoid this error or I will not have the confidence to develop large applications using classes. 

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And then in reply to Aritso Queue (Cheif Architect and father of LVOOP)

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James G wrote:

I noticed the mystery Untitled 1 does not have a URL listed.  On a hunch I removed the URL tag from the other method and suddenly it does not show up in the class viewer either.

So this now explains the how to fix, the why can't I see it, and a strong possibility for the how the heck did this happen.

Once again thank you all for the fast* and accurate help.

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So is that shaken confidence restored?

Ben

* Try to get that response when working in anothe language!

[Sudharsan62]

I faced a similar issue recently with one of the classes.

I had added a new VI to the class but before I could save it, for some reason LabVIEW crashed. I recovered the class but not the VI and started to see the same error.

I checked the lvclass xml for any VIs without URL or with the VI name as untitled. But I didnot find any. I thought an easy solution would be to reset the lvclass file from repo which did not work. Source Control didn't find any changes to the local file and so it did not update. Even the last modified time of the lvclass file was not changed after the crash recovery.

What worked for me is to delete the file and update from repo.

[jackwhelan]

I know this is very old but I just had the same issue when I tried to save a project from LV2020 to 2018. I got this error message but there were no missing members in the class. 

I dragged the class out of its parent library and back in and then the missing members because visible