Why does Simulink generate an error at build time for TMS320C2812 board?

I am trying to learn the demo about Asynchronous Scheduling in Simulink using the TMS320C2812 ezdsp board. However, when I try to build it, Simulink generates an error at build time with the following message:

Error building Real-Time Workshop target for block diagram 'c2812asyncscheduling'. MATLAB error message: Error using ==> callMakeHook at 49 The call to ccslink_ert_make_rtw_hook, during the exit hook generated the following error: Error using ==> feval Error using ==> i_exitHookpoint at 93 Error while creating the project:

This error occurs when the command window shows.### Creating project ...