message: Leave error message if no jet container is attached.
diff: @@ -41,8 +41,10 @@ Bool_t AliAnalysisTaskRho::Run()
  if (fOutRhoScaled)
  fOutRhoScaled->SetVal(0);
  - if (!fJets)
  + if (!fJets){
  + AliErrorStream() << "No jet container attached container" << std::endl;
  return kFALSE;
  + }
  const Int_t Njets = fJets->GetEntries();
  