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error 1003 occured at invoke node

I am having the following error in my application.
The actual message is: error 1003 occured at the invoke node in the main VI. The VI is not executable.
My main VI is not an executable. What Could be causing this error?
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Hi,

Can you provide some background -- what is the VI doing? What invoke node are you using, etc.? Better yet, can you attach a simplified test VI which still exhibits this behaviour?

Regards,

-Khalid
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