Vi shows an error and labview crashes

[Brian_K.]

Hi GcDago,

Mass compiling ensures that all VIs are opened with the current version of LabVIEW.  Taken straight from the LabVIEW Help:

"When you open a VI last saved in a previous version of LabVIEW, LabVIEW automatically converts and compiles the VI. You must save the VI in the current version of LabVIEW or the conversion process, which uses extra memory resources, occurs every time you access the VI."

When users are having a hard time upgrading it is typically the first step I try in debugging the problem.  Divya, did you discover anything new about the problem?

[divya]

Hi Brian,

I tried mass compiling my code, but I got many errors in my express vi's. All the express vi's which I had used in my application like the signal analysis functions got corrupted. I could not open the properties of the express vi's. Does this happen if you upgrade from LV8.0 to LV 8.2 ?? I'm asking this because all the express vi's I used were from LV8.0... And can we have LV8.0 and LV8.2 in the same PC ?? will this cause any trouble while upgrading ??

I had LV7.1 and LV8.0 in the my PC and I didn't face any problem....I'm facing problems only after upgrading to 8.2... Now I have reverted back to LV8.0....

Thanks for your interest...

Regards,

Divya

[Brian_K.]

Hi divya,

"And can we have LV8.0 and LV8.2 in the same PC "

Yes.  I currently have LV 7.1, 8.0, and 8.2 on the same computer.

"will this cause any trouble while upgrading ??"

You should be able to upgrade seemlessly.  If it does cause problems then that is something we can look into.

A few questions should help troubleshoot the issue. 

1)  Can you pin-point any trouble VIs?  If you can I typically right-click them and replace them with the current version of the VI. 

2)  Is there a pattern to the trouble VIs?  You said that express VIs give you problems.  Which ones specifically, or is it ALL express VIs.

3)  If a bad install took place you may need to repair LabVIEW.  You can (in Windows I assume) do this by going to Start-> Settings -> Control Panel-> Add/Remove Program -> National Instruments Software as choose Change.  Then select the version of LabVIEW you want to repair.

4)  What kind of errors are you receiving when you mass compile?  That may utimatily point to what the real problem is.

5)  Is it possible to put you program on another computer with LV 8.2?  If it is a bad install of LV on your current computer hopefully a different installation won't have the problem.