IMAQ read data matrix bar code error

[IO HUI]

Dear all,

I have tried to use the sub vi--IMAQ read data matrix bar code and I have an error."unlicensed copy of NI vision".

I don't know what happen and before this time,I have used it for a few times and in those time, there are nothing happen.

What 's wrong with it? 

Thanks in advance,

Io

[michaeld]

Io,

Which version of LabVIEW and NI-Vision do you have? Have you been able to activate your copy of Vision before with the license that you have? If you were able to activate it before, why is the software not activated anymore? Did you install the software on a different machine?

When you get the "unlicensed IMAQ Vision" error, that means that you have not activated the software properly. I would suggest you try to un-install Vision, re-install it, and than activate it once again. If you have further activation question or issues, I would recommend that you contact National Instruments directly to resolve any activation issues.