Simulink Coder: no such file or directory

Hey there, I want to get a s-function with Simulink Coder out of a BMS_strategy_EJ04_Diagmodel. when i run the model,it tell me :"Error(s) encountered while building model "BMS_strategy_EJ04_Diagmodel"". The detail of the error message:

 BMS_strategy_EJ04_Diagmodel.mk:171: D:/Program: No such file or directory 
BMS_strategy_EJ04_Diagmodel.mk:171: Files/MATLAB/R2011b\rtw\c\tools\lcctools.mak: No such file or directory 
gmake: *** No rule to make target `Files/MATLAB/R2011b\rtw\c\tools\lcctools.mak'.  Stop.

Well, it seems the path in line 171 is not working right. so i hope you can help me to slove this problem. thank you !! yours miss Lee