I am trying to calibrate an Abaqus material model to some test data I have. However, when I run the calibration I receive the error 'The specified path to abaqus is not valid. Please change the abaqus path in the global preferences dialog'. I have ensured that the Abaqus path is the same as that stated in the instructions and so it points to my abaqus.bat file. Does anyone know what might be the solution to this issue? (I am using a trial license of MCalibration, I don't know if this should make any difference?).