how to correct his error:
The performance counter 'DefaultCounter' has not been started yet. See Details for additional information. 11:24:23 Normal 0,20:
script line(code javacript) CommonFunctions.insertAttributVal(xmlDocRes,"project/Run/run_duration", "Value",aqPerformance.Value()/1000);
Log.Message("Run Duration: "+aqPerformance.Value()/1000);"
how to correct this error