how to compiled with WebGL Earth codebase

```
Hello eveybody

I always cann't compiled with WebGL Earth codebase,i have already follow the 
steps at the Quickstart for developers,but my pc told me Is not an internal or 
external command, nor is it can run the program

So I realy beg sombody help me pls......
```

Original issue reported on code.google.com by `riverpl...@hotmail.com` on 19 Mar 2012 at 8:58
