In the FeynRules package, I loaded the model SM.fr. But when I was trying to check the Hermiticity or run the command " FeynmanRules[L];", it is giving an error message: "GetFC::Head: Wrong Head in FC.". What does it mean and where is the problem? I have no idea. Please help.
I'm guessing it means whatever data was used in the function was checked like "If[ Head[variable]==foo, ..." and the result was wrong.
Try the examples in Help, if those work then perhaps the problem is in your code.
