orProblemSendCommand showing error for 'CloseFingers' command

[hariteja1992]

I have been trying to get the example given in OctaveMatlab wiki page for openrave.........ExecutingPlanner - Grasping Example.

But when i use   "orProblemSendCommand('CloseFingers',manipid) " command, 'error' is being displayed .......can anyone please help me solve this?