error setting description machine

[elidiazgt]

Hello, i get error this error when insert my description, the second step of the generator

events.js:72
throw er; // Unhandled 'error' event
^
Error: Unexpected error occurred.
at Object.Machines.promptAboutNewMachinepack.exec.error (/usr/local/lib/node_modules/generator-machinepack/app/index.js:31:14)
at afterwards (/usr/local/lib/node_modules/generator-machinepack/node_modules/machinepack-machines/node_modules/machine/lib/intercept-exit-callbacks.js:131:21)
at voided as _onTimeout
at Timer.listOnTimeout as ontimeout