errot :Making simulation target "viptrackpeople_sfun", ... ?

After I simulink the viptrackpeople model,it has the error as follows

Making simulation target "viptrackpeople_sfun", ... D:\matlab2012\toolbox\vision\visiondemos\slprj\_sfprj\viptrackpeople\_self\sfun\src>call "mexopts.bat"

i don't know what's the meaning, who can figure it out? thx.

[Kaustubha Govind]

There is usually a more detailed error message displayed in the popup error window. Do you see any other details?

[yuxing zhang]

that's all information it gave me.

[Kaustubha Govind]

Could you run "mex -setup" in MATLAB and select a supported C compiler? It may be that your compiler is not setup, causing the build process to fail.