Ionic push error.-----TIMEOUT

I build a new project(android) accorrding to

but when i run android,an error occured:

Ionic Push: (debug) unexpected error occured.
Ionic Push: TIMEOUT

i suspect that it is caused by network
thanks for your help.

(this is my first time to use this forum,so sorry that i can make my text nice-looking… and my english is not
"nice-looking" too :P)

the detail

Ionic Push: Error: TIMEOUT
at fail (file:///android_asset/www/plugins/phonegap-plugin-push/www/push.js:57:49)
at Object.cordova.callbackFromNative (file:///android_asset/www/cordova.js:295:52)
at processMessage (file:///android_asset/www/cordova.js:1081:17)
at processMessages (file:///android_asset/www/cordova.js:1104:9)
at pollOnce (file:///android_asset/www/cordova.js:973:9)
at pollOnceFromOnlineEvent (file:///android_asset/www/cordova.js:960:5)
i.value @
e @
PushNotification.emit @ push.js:217
fail @ push.js:58
cordova.callbackFromNative @ cordova.js:295
processMessage @ cordova.js:1081
processMessages @ cordova.js:1104
pollOnce @ cordova.js:973
pollOnceFromOnlineEvent @ cordova.js:960