simulink build model failure

when I use simulink to make a model for TI DSP2812 ,there comes a problem as fllow:

D:\MATLAB\led\ledd_ert_rtw>"D:\Program Files\MATLAB\R2012b\bin\win32\gmake" -f error: .\ledd.h:24 ledd_data.c:17 Could not find include file "DSP281x_Device.h" 
lcc preprocessor error: .\ledd.h:25 ledd_data.c:17 Could not find include file "DSP281x_Gpio.h" 
2 errors, 0 warnings 
gmake: *** [ledd_data.obj] Error 1 
### Build procedure for model: 'ledd' aborted due to an error.

[Kaustubha Govind]

I don't think ert.tlc is the right System Target File to choose in the Code Generation pane of the Configuration Parameters window. Please run ccstutorial at the MATLAB prompt to see a tutorial on how to configure your setup correctly.