Evaluator: com.glide.script.RhinoEcmaError: Cannot read property "number" from null

[PRADEEPREDDY GU]

Evaluator: com.glide.script.RhinoEcmaError: Cannot read property "number" from null
   script : Line(3) column(0)
      1: var trigger = new GlideRecord('sys_trigger');
      2:     trigger.intitialize();
==>   3:     trigger.name=  current.number +"- priority change ";
      4:     //trigger.next_action = updated;
      5:     trigger.script = "var obj = new Certtestp1().Triggerp1" + "('"+ current.number +"');";
      6:     trigger.trigger_type = 0;

anyone provide solution for this  

[Kirby R]

Are you in different scope other than global?

Try to use current.getDisplayValue('number');