FPGA I/O node: you have connected two terminals of different types

[kanemo]

Hi everyone, not long ago I took over a project from a senior. There is a very obvious problem with one labview program that I got --- when it comes to the FPGA I/O nodes, it always warns: you have connected two terminals of different types : .... However, in another different but similar vi，everything is OK. 

To be honest, I am not very familiar with the FPGA I/O nodes and even the labview language. It can't be better if there is someone who would like to give me some tips. 

（I'm sorry that there is something wrong with that computer' USB interfaces and no Internet is available so I have to take the photos）

[RavensFan · Accepted solution]

Are you working within the context of a project?  Do you have the VI under the RT or FPGA part of the project tree?   Do you have those I/O Nodes defined in the project tree?

It looks like the kind of thing that might happen when the VI doesn't know what those nodes are because you didn't open it up in the context of the project.  The wires become that black "void" undefined type.

[kanemo]

Thanks for your reply! It seems that you hit the target! What I opened is a single file(.vi) and those red cross appear, but when I open the .lvproj, everything is okay. I'll later discussed with my senior. If you are indeed right, then I will take your answer as the correct one.

Thanks again!