TypeError: content.ionScrollStart.takeUntil is not a function

Ionic Framework ionic-v3
1

Hi, I am having this problem, can you help me please?

ionic
ionic.png984×675 50.5 KB

2

Hi @deyvijam,

What are you trying to do? What version of Ionic Angular are you using?

At first look, it seems that you’re trying to use the takeUntil operator in an observable, but the function doesn’t exist (is undefined). If you’re using the newer RxJS versions, you have to do observable.pipe(takeUntil(subscription)) and import takeUntil from rxjs/operators.

Best,
Rodrigo

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