I have an error with the combination Matlab(2010a), Arduino Uno R3, Arduino Motor Shield R3 and this package here. There is a Warnig:
"the sketch running on the Arduino does not support the motor shield. No operation will be performed on the Arduino board"
Did anybody set up the original Motor Shield successfully?
vishnu vardhan before that, have you uploaded any sketh on arduino for Matlab Communication? example Adiosrv.ino or Adioes.ino? and have you copy the files arduino.m and install arduino in current folder or matlab?
When you have message like "... does not exist", it looks that directory "blocks" is not on the MATLAB path. It should be, because it is done in function "setup_customtarget_arduino.m" on first functional line and next this path is saved:
result = savepath;
Try to run "setup_customtarget_arduino.m" again.