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Problems with adding controllers to subsystem in Simulation Loop

I have developed a simlulator for control systems in LabVIEW 8.2. This worked completely fine in 8.2, but after I upgrated to a 8.5 version that i got form NI, I have problems adding one controller to one of the subsystems in the Simulation Loop. I get an error that says: Error in compiling the VI. And when I want to see the error, it just marks the whole Simulation Loop without any detailed information.
 
I have attached the files that are involved. This is the one peace of the simulator that seems to not work. Try and open the file called Eksempelkrets, and make sure that you also have downloaded the other VI's (These are SubVI's in the program). First run the Eksempelkrets like it is now. Then try to attach q [m^3/s] to the subsystem in the Simulation Loop. The error appears when I try to add the controller called q [m^3/s](input to subsystem)
 
I want to know if anybody else gets the same error. What do I have to do to repair it?
 
Thank you for the answers!
 
Morten
 
PS: I can only attach 3 files, so i have to reply to add more files. The total is 9 files.
 
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Hi again,
 
Sorry, found out that the SubVI's called c and rho is not in use in this program. So there's no need to download these two. But I also forgot one of the Sub's. This one is attached in this reply.
 
Morten
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