LabVIEW Errors

[Zhaonian]

Dear Madam/Sir,

I face some labviews errors when I do my labview codings.

Some extra lines, which are not generated by me, come out. And these lines are not connected to any function block symblols. 

Coding Block Diagram

Zhaonian_0-1595297657311.png

Navigation window

Zhaonian_1-1595297720981.png

These labview errors do not affect running program, but sometimes the labview closes suddenly and requests to send error report when I edit the labview codings. 

May I know how to solve this issue? My labview program is quite complicated and I don't want to recode it.

Thanks!

Best Regards!

Guo Zhaonian 

[RavensFan]

Try running block diagram cleanup.

Are you sure it isn't a graphics redraw issue?

[Zhaonian]

Thanks for your reply. The block diagram cleanup function is not working for this VI. And I confirm that it is not graphics redraw issue.

[RavensFan]

It is very large.  Perhaps you've hit some limits as to the size of the block diagram window.  Something must have corrupted the block diagram arrangement.

I suggest going back to your source code repository and retrieving a version that did not have this problem.

Or just re-code it from scratch.

[Zhaonian]

Yes, it is very large.

Retrieve a version and recode will take long time. Can local NI technical staff help to resolve the issue?

Thanks!

[GerdW]

Hi Zhaonian,

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@Zhaonian wrote:

Retrieve a version and recode will take long time.

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Retrieving an older version from SCC (or even a backup) only takes seconds.

Recoding might take an hour.

(How long are you struggling with this VI right now? For several hours or even days?)

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@Zhaonian wrote:

Can local NI technical staff help to resolve the issue?

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I don't think so, but you are free to call them…

Lessons learned:

• Never let the block diagram of a VI grow this large by following the StyleGuide in the LabVIEW help.
• Setup a SCC system (or implement a backup scheme on a regular interval).