follow the tuts, i setup Monoframe first (http://www.mono-project.com/download/) when i install Fusetool, it desen’t work。
my mac info
Thanks for getting in touch, let’s see what we can do about this. 
Can you please do a mono --version and send us the output from that?
how can i do that?
Mono install complete,but i can’t found anything in my Mac. Mono version:MonoFramework-MDK-4.0.2.5.macos10.xamarin.x86
Hm, could be that your mono version is “too new”, try installing Mono 3.0 specifically.