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Hi,

please load FeynCalc via

$LoadFeynArts = False;
<< HighEnergyPhysics`FeynCalc`

or use the latest development version

https://github.com/FeynCalc/feyncalc/wiki/Installation#dev_automatic_installation

Cheers,
Vladyslav

Am 12.06.2015 um 02:34 schrieb dinesh:
> Thank you for help but i am getting the following output :
> for h :-
> Contract(Subscript[\[CurlyEpsilon], \[Mu]](q) Overscript[u, _](p2,m2).\[Gamma]^0.u(p1,m1))
> for h2 :-
> 4 Contract(\!\(
> \*SubsuperscriptBox[\(\[CurlyEpsilon]\), \(TraditionalForm\`\(TraditionalForm\`\[Mu]\)\), \(*\)](q)\) HighEnergyPhysics`fctools`DiracTrace`Private`spursav(\[CurlyPhi](p1,m1),\[Gamma]^0,\[CurlyPhi](p2,m2))) Contract(Subscript[\[CurlyEpsilon], \[Mu]](q) HighEnergyPhysics`fctools`DiracTrace`Private`spursav(\[CurlyPhi](p2,m2),\[Gamma]^0,\[CurlyPhi](p1,m1)))
>
> I don't know about this error message .
>

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