Nav.present not found

Hi everyone,

I got these problems with the last version of ionic2 with typescript and after two days of research i post here :

First one :

as you can see, the function present of nav is not found, i dont see why : there is my code (pretty simple) :

Second problem :
In the pastebin (in onLoginSuccess and onLoginFail), i must use LoginPage.prototype.showAlert to use this function, why cant i just use this.showAlert directly ? (when i do that, i got a this.showAlert is not a function).

Thanks for your help !

EDIT : i forgot the info :

Your system information:

Cordova CLI: 6.0.0
Ionic Version: 2.0.0-beta.2
Ionic CLI Version: 2.0.0-beta.19
Ionic App Lib Version: 2.0.0-beta.9
OS: Windows 7 SP1
Node Version: v4.2.3

You should change:

nav: any;



In fact you could have private nav:NavController in your constructor and take out the above line all together.


    private nav: NavController
  ) {
1 Like

If you base your code on what’s done here in the Conference app it should work.

Hi sorry,

You are right for the parameter in constructor but the problem dont come from here.

After further more research i was interested in the context that my code was executed, and i was right.
‘this’ in the callback code isnt refered as LoginPage but (maybe) as HttpService :

I just need to pass the instance of nav and my function will be correctly code.

Thanks for you’r awser btw :slight_smile:

EDIT : dunno how to archive the post for someone to search the same problem as me ?