I want to be able to use both FeynCalc and FeynArts (together seems impossible, I'm fine with using them separately for now). I don't know how to install FeynArts and run the simplest examples. I tried
Import["http://www.feyncalc.org/install.m"] which fetches FeynCalc and FeynArts but I cannot use this FeynArts for some reason. I cannot load it in Mathematica 10 (Mac OSX).
When I follow this site's suggestion
A dialog asking if you want to patch FeynArts will appear. Type yes and hit OK. Wait until the patching process finishes
This dialoge never appears in my case, but only an error message saying:
$LoadPhi = True; $LoadFeynArts = True; <<HighEnergyPhysics`FeynCalc`; Loading FeynCalc from /Users/MyName/Library/Mathematica/Applications/HighEnergyPhysics FeynCalc 8.2.0 For help, type ?FeynCalc, open FeynCalcRef8.nb or visit www.feyncalc.org Loading PHI WARNING! Your FeynArts installation is not complete or the version you have cannot be used with this version of FeynCalc. FeynArts can be downloaded at www.feynarts.de Loading FeynArts, see www.feynarts.de for documentation FeynArts not found. Please install FeynArts, e.g., in /Users/MyName/Library/Mathematica and reload FeynCalc FeynArts can be downloaded from www.feynarts.de