In my experience this usually means that whatever method that invoke node points at isn't present or is using a different method template in some way (different arguments, different version, and/or different return data type).
If you click the node it should give you a list of all possibly methods. If that's what happens, you need to "re-select" the method you want. Don't just close the menu, you need to get LabVIEW to "re-link" to the method. If there's more than one method listed, select a different one, then click again to select back the one with the name you want.
The other thing that might happen is that you might click the node and it shows an empty list. That means that the wire defining the class type of the node is either invalid for a similar reason (coming from a dead node) or is from something not installed on your PC.
Best guess is that the two PCs have different versions of Excel on them, and on one version the definition of the method doesn't match so you get this error on it.
