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Project file becomming corrupt
StevenD
10-02-2013 09:29 PM
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Hoping to find some help with this...
I am working on a larger project that was originally written in 2009(??) (whenever shared variables were introduced) The project has been converted to 2013 and has worked (for the most part). However I recently had to make a change that is causing the lvproj file to become corrupt. There is a large cluster of information that I needed to modify to contain a class object. Everytime I do this, I get no errors and the program seems to run, but when I try to open the project the next time LabVIEW tells me the project file is corrupt.
Other maybe relevant information:
OS is Windows XP 32bit
LV 2013
The cluster used to feed into a shard variable, but I changed it to a Global variable becuase shared variables don't accept Class data.
The class is coming from a vip, not the project itself.
Any insight into why this would corrupt the lvproj???
I may not be able to respond right away, but will check this in the morning.
Ranjeet_Singh
10-03-2013 02:25 AM
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Can you upload an image or something
Kudos are always welcome if you got solution to some extent.
I need my difficulties because they are necessary to enjoy my success.
--Ranjeet
10-03-2013 09:52 AM
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Sure, the first image is the unmodified cluster. This code doesn't cause any issues. The reference that I need to replace is highlighted in red. When I change that to an object (shown in the second picture) I don't get any error and the program seems to run ok, but the project file becomes corrupt and I can't open it again.
I am trying to verify that this isn't an issue with my computer and loading labview on another computer right now. I will follow up if I am sitll having issues.
10-03-2013 12:35 PM
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I have now confirmed that is error is not specific to one computer. I can work around this, and luckily I have a backup from a few days ago, but this could be a huge problem if it wasn't backed up.
10-03-2013 01:02 PM
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I think I have found the problem.
It seems another VI was still trying to plug the cluster into a shared variable. I don't know why LabVIEW didn't give an error, but that seems to violated some basic rule (having a Class Object in a Shared variable) which caused the project file to become corrupt.
