Info in : Plugin will use the output files taken from analysis manager Info in : System information will be collected each 40 events input_line_116:2:10: error: redefinition of 'TFormula____id17554733829522576506' Double_t TFormula____id17554733829522576506(Double_t *x,Double_t *p){ return p[0]*x[0]*x[0]+p[1]*x[0]+p[2] ; } ^ input_line_114:2:10: note: previous definition is here Double_t TFormula____id17554733829522576506(Double_t *x,Double_t *p){ return p[0]*x[0]*x[0]+p[1]*x[0]+p[2] ; } ^