ionic-framework: Uncaught (in promise): false ionViewCanEnter (v3)

Ionic version: (check one with “x”) [ ] 1.x [ ] 2.x [x] 3.x

I’m submitting a … (check one with “x”) [x] bug report [ ] feature request [ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior: I think this is an old BUG, one comes back many times from a long time. I had not this error before on passing to v3 and IonicPage lazy loading.

I’m playing around pushing root pages for LoginPage/MainPage on http 401 exception. When I got an 401 error status I will push LoginPage to rootPage. I have a two ion-navs one which loads LoginPage or MainPage and one in MainPage whichs loads any SubPages in MainPage

I have the error using ionViewCanEnter() where I call my AuthGuard which is calling resource /usser/current which is getting an 401 error

I think the main problem is the ionViewCanEnter which doesn’t work very well with Promise calling a Observable

ionViewCanEnter(): Promise<any> {

    return new Promise((resolve, reject) => {
            this.userService.current(true).toPromise()
                    .then((data) => {
                        resolve();
                    })
                    .catch((error) => {
                        reject('ERROR');
                    });
    });
}

I think it would very heart have to reproduce my error on my side on a simple ionic app. Can someone help me figuring out the bug?

Runtime Error
Uncaught (in promise): false
Stack
Error: Uncaught (in promise): false
    at g (http://localhost:8100/build/polyfills.js:3:7133)
    at l (http://localhost:8100/build/polyfills.js:3:6251)
    at http://localhost:8100/build/polyfills.js:3:5607
    at http://localhost:8100/build/polyfills.js:3:17487
    at t.invoke (http://localhost:8100/build/polyfills.js:3:14529)
    at Object.onInvoke (http://localhost:8100/build/main.js:4499:37)
    at t.invoke (http://localhost:8100/build/polyfills.js:3:14469)
    at n.run (http://localhost:8100/build/polyfills.js:3:9741)
    at http://localhost:8100/build/polyfills.js:3:6774
    at t.invokeTask (http://localhost:8100/build/polyfills.js:3:15213)
    at Object.onInvokeTask (http://localhost:8100/build/main.js:4490:37)
    at t.invokeTask (http://localhost:8100/build/polyfills.js:3:15134)
    at n.runTask (http://localhost:8100/build/polyfills.js:3:10390)
    at a (http://localhost:8100/build/polyfills.js:3:5313)
    at XMLHttpRequest.invoke (http://localhost:8100/build/polyfills.js:3:16210)
Ionic Framework: 3.0.1
Ionic App Scripts: 1.3.1
Angular Core: 4.0.0
Angular Compiler CLI: 4.0.0
Node: 6.10.2
OS Platform: Linux 4.8
Navigator Platform: Linux x86_64
User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36

Expected behavior: This should solved as soon as possibile

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

    Cordova CLI: 6.5.0 
    Ionic Framework Version: 3.0.1
    Ionic CLI Version: 3.0.0-beta.5
    ios-deploy version: Not installed
    ios-sim version: Not installed
    OS: Linux 4.8
    Node Version: v6.10.2
    Xcode version: Not installed