embeded coder errors, ccsv5+tms3​20c6748+xd​s100v2

I'm using ccsv4/ccsv5 IDE + TMS320C6748 with XDS100v2 emulator. Right now, I just want to try a very simple simulink model to see if matlab can generate code for dsp board, the model is as below:

I checkEnvSetup, xmakefilesetup, but when I build this model, I get the error:

I really need help now, if anyone who knows how to solve the problem plz reply me, thanks in advance.