I'm also getting the same error messages:
DownValues::vlist : Cannot set \!
to «l»; value must be a list of rules.
I use WinXP, Mathematica 4.1 and have tried both FeynCalc 18.104.22.168 and 4.2.0. When I select "Rebuild Help Index" in Mathematica, the help browser opens, but doesn't have any mention of Feyncalc.
Any ideas how to fix my install?
This archive was generated by hypermail 2b29 : 11/24/17-01:40:02 PM Z CET