Failed to init sugar-emulator form Jhbuild

[Alvar]

we're trying to compile sugar on a Ubuntu10.10 derived distribution (Tuquito). We managed to resolve dependencies and compile the module hulahop properly (11/26 and 12/26). In fact, the sugar compiled and works fine in a testing machine.
But when we repeat the procedure in other devices, although it compiles, when you we run ./sugar-jhbuild run sugar-emulator apears this error

Error executing server: [Errno 2] No such file or directory
Failed to start server. Please check output above for any error message.

some idea of ​​what's happening

[sascha_silbe]

Please include the full error message.

A quick guess would be that you're missing Xephyr.