search for: set_eros_values

why would I be getting this error after submitting my form? NoMethodError in EchantillonsController#create undefined method `call'' for nil:NilClass This is my create method in the controller: def create @echantillon = Echantillon.new(params[:echantillon]) @echantillon.set_eros_values respond_to do |format| if @echantillon.save if params[:echantillon][:vignette].blank? format.html { redirect_to(@echantillon) } format.xml { render :xml => @echantillon, :status => :created, :location => @echantillon } else...