Ionic platform web client register push bug

ionic-v1
1

I do

.run(function($ionicPlatform) {
$ionicPlatform.ready(function() {
var push = new Ionic.Push({
“debug”: true
});

push.register(function(token) {
  console.log("Device token:",token.token);
  push.saveToken(token);  // persist the token in the Ionic Platform
});

});
})

but I got this error.

Uncaught TypeError: t._getPushPlugin(…).init is not a function, http://192.168.0.11:8100/lib/ionic-platform-web-client/dist/ionic.io.bundle.min.js, Line: 3

I remember previously it was working, but now I got that error. I’m using gradle-2.10-all.zip.