Application builder error

[ShinnyMonkey]

Does anyone know what could be causing this error?

Possible Cause: C:\Program Files (x86)\National Instruments\LabVIEW 2023\vi.lib\AppBuilder\AB_Classes\Source\VI\Open_Reference.vi

Only simple test VI in this case:

[Bob_Schor]

"We apologize for the inconvenience" errors means "something went wrong, and we have no idea what it was".  Sometimes it's something as simple as moving a wire while editing a VI" (which happened to me with LabVIEW 2011, "cured" when I printed the Block Diagram (so I knew what it was), deleted it, then re-created it.

You seem to have a very simple VI that caused this.  I'd recommend the following steps:

1. Open your VI.  Save a copy on a flash drive (or somewhere else on your hard drive), keeping the name the same (just in case).
2. Print it, showing all the "bells a whistles" so you (and we) can re-create it.
3. Make sure that the original still crashes.  If it does, delete it.  If it does not, you fixed the problem and can skip the rest of these suggestions..
4. Re-created it as "exactly" as you can.  Don't add or subtract anything.
5. Do whatever you did to cause the crash (such as run it, or save it, or whatever).

If this "fixes" the problem, great!  If it doesn't, you now have a VI that you can attach so that the "wisdom of the Community" can make better suggestions.

Bob Schor

[ShinnyMonkey]

Bob,

Thanks for the suggestions.  I have my actual project that caused the crash so I created a very simple project with just the one VI to test.  The simple project also fails. 

• I've tried "repairing" the install from the package manager, but no luck. 
• I've since installed LV on another machine just as a work around so I can compile my project.
• I can compile my project on the other machine, so this problem is not associated with the project but some state on my original machine.
• I'm hoping to get to the bottom of this so I don't have to keep transferring to a different machine when I need to build
• Next step is to uninstall and re-install

[Bob_Schor]

---

@ShinnyMonkey wrote:

• Next step is to uninstall and re-install

---

Your instincts are (mostly) correct.  A "repair" is rarely a good idea -- it often takes much more time to remove software "one piece at a time" and replace it than to do a "uninstall everything" and "install an entire system all at once".  This is especially true if you are dealing with more than one LabVIEW version on the machine.

The one caution is to use NIPM carefully.  Use it twice -- once to remove everything (you might need to run it twice), makind sure you uncheck "Projects only".  The last thing you remove is NIPM itself (when it's the only thing left).

I recommend you do not delete any Files or Folders, and don't touch the registry!  That usually leads to reformatting the C: drive and rebuilding the entire PC (you do have everything backed up, don't you?).

Now you can do a re-install safely.  Trust me (having done this both the "right" and "wrong" way) the "uninstall/reinstall" method is relatively quick and very safe.

Bob Schor