"error 4 occurred at constructor node"

[ahhah]

When I run my application I'm getting "error 4 occurred at constructor node".  I don't get the error when I run the vi from my project. 

"Possible reason(s):

LabVIEW: End of file encountered."

Any ideas?

[Hillman]

Hi, When building executables of LabVIEW VIs you must take several aspects of your code into consideration. One common cause of errors is the use of file paths - because the executable with run in a different location to that of the original VI.

Please see this knowledgebase article for more details

Why Does My Executable Not Work When Using the Current VI's Path Constant?

Other Ideas for trouble shooting,

1) Have you tried a simple VI that lights an LED upon pressing a switch. If this works it confirms you have no issues with LV Runtime engines etc.

2) You could post your code (if its readable and not too big) and we (forum) might be able to suggest other issues.

Regards,

James

[smercurio_fc]

Are you running the application on the same computer as the development environment? If it's on another machine do you have the right .NET version? Is the assembly you're loading dependent on other assemblies? Are they in a location where the .NET Runtime can find them (http://digital.ni.com/public.nsf/allkb/C4EA5ABBEB67AF7C862573F3004D4421?OpenDocument)?

[ahhah]

The application and final development pc are the same.  However, the initial development pc was different.  And I can run the program from the current pc without issue, but not the application.

[ahhah]

I swapped the location of the application and the problem seems to have gone away. 

Thanks for the help

[Ray.R]

Sorry to jump in so late...

Did you have more than 1 dll?  Were they all copied to the appropriate folder?

... simply speaking from experience ...

[ahhah]

many dll's.  Honestly, it's a trial and error thing and I avoid switching locations of the executables as much as possible.

[Ray.R]

What happened to me was that one of the dll's did not make it to the build folder..