Device Identifier is Invalid LabVIEW Core 1 Exercise 4-1

[Ezzell]

In the LV Core 1, exercise 4-1, I am asked to run the thermocouple task. This VI opens fine but when I hit RUN is gives me the 
Error 200220 Device identifier Invalid.

As you can see in the screenshot, it says the device specified is PCI-6221 but suggests that I use Dev1.

The simulated PCI-6221 is listed and is named Dev1. i checked this by trying the rename function.

What am I doing wrong?

[tyk007]

Did you try using "Dev1"? Alias names are important as they help distinguish between different modules with the same part number.

[Ezzell · Accepted solution]

Did you try using "Dev1"? Alias names are important as they help distinguish between different modules with the same part number.

Yes, renaming it Dev1 populates it as PCI-6221 "Dev1".

I found the solution just a few mins ago,  I had to rename it PCI-6221, which populates it as PCI-6221 "PCI -6221"

The Error went away and the VI ran.

Thank you for reaching out.