bug: Cannot read property 'ev' of null

[dylanvdmerwe]

Ionic version: (check one with "x")
[ ] 1.x
[x] 2.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 upgraded a project from RC4 to 2.0.0. When running the project, I get shown the following error:

Note that if this error is dismissed, the application continues to function as normal.

Expected behavior:
Error to be fixed.

Other information:
As discussed with @manucorporat:

so
https://github.com/driftyco/ionic/blob/3a718de4632427cdf1a44e066bb559a6c28c6733/src/components/content/content.ts#L620
this function is called after the content has been destroyed
it is huge complicated function
we could fix it by doing:
if(!this.scroll) return; 
but it is a bad fix, since it does not fix the root of the cause
that function should not be called a tall

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

Cordova CLI: 6.5.0
Ionic Framework Version: 2.0.0
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.0.0
ios-deploy version: 1.9.0
ios-sim version: 5.0.10
OS: macOS Sierra
Node Version: v6.9.1
Xcode version: Xcode 8.2.1 Build version 8C1002

[dylanvdmerwe]

In ionViewDidLoad of the rootPage, I was setting a variable that hides the ion-menu.

<ion-menu *ngIf="showMenu"

Moving the logic to ionViewWillEnter fixes this. But this is still a workaround as the code worked fine in RC4.

[dtalay]

I encountered this problem in a modal view. I had the same problems with ionViewDidLoad getting navParams. Putting it inro ionViewWillEnter solved the problem but the scroll is still messed up. I moved it to constructor and worked perfectly. Please submit this as a bug report. Thanks

[brandyscarney]

A fix for this will be in the next release. Can you please try out the following nightly and let me know if you find any issues:

npm install --save --save-exact [email protected]

Thanks!

[chanoch]

Brandy's fix worked for me.

[leonardopaiva]

thanks,

i had a similar problem trying to use this.content.scrollToBottom(), so i checked the line where says the error log, it was leading to content.js core file, i was getting the error because this._scroll was null, so i checked it first before using on my component

if(this.content._scroll) {
}

its working for now, but i am not sure if this is a good work around. Hope that helps someone.

[ionitron-bot]

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