求助 有关RTW编译中遇到的问题

不可逆

我搭建了一个simulink模块，因为要做半实物仿真，所以要用 Tools|Real_Time Workshop|Build model进行模型编译，运行时出现了如下错误
Error building Real-Time Workshop target for block diagram 'k'. MATLAB error message:
Error using ==> callMakeHook.p>callMakeHook
The call to ti_c2000_ert_make_rtw_hook, during the before_tlc hook generated the following error:
    Error using ==> beforetlcHookpoint_tic2000target
This model does not contain any target preference blocks.

The build process will terminate as a result.
我是一个新手，对此摸不着头脑，请大虾帮我看看这个错误是什么意思，是如何造成的，谢谢！