# Already some method not found switching from alpha10 to beta01

**URL:** <https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068>\
**Category:** Jetpack Compose by Tutorials\
**Created:** [March 2, 2021, 8:31pm UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068 "2021-03-02T20:31:43Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![albertocappellina](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/albertocappellina/32/81494_2.png) [@albertocappellina](https://forums.kodeco.com/u/albertocappellina)\
**Post date:** [March 2, 2021, 8:31pm UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068/1 "2021-03-02T20:31:44Z")

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Hi,  
as stated there are some issue when moving from alpha10 to beta01 : some classes are not found (eg. LifecycleOwnerAmbient).

I guess some update is needed. When will you update your repo, or at least some branches?  
It’s not easy to understand things when nothing is compiling 🙂

Thanks,  
A

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**Author:** ![saul](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/saul/32/96201_2.png) [@saul](https://forums.kodeco.com/u/saul)\
**Post date:** [March 17, 2021, 6:50pm UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068/2 "2021-03-17T18:50:20Z")

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Try LocalLifecycleOwner

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**Author:** ![filbabic](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/filbabic/32/108144_2.png) [@filbabic](https://forums.kodeco.com/u/filbabic)\
**Post date:** [April 26, 2021, 8:09am UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068/3 "2021-04-26T08:09:43Z")

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Hey @albertocappellina!

We’re currently in the process of updating the book (sorry for the delay in answers).

We should be pushing a beta compose-version of the book soon, so stay tuned! :]

Thanks!

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**Author:** ![jamesblack975](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/jamesblack975/32/81494_2.png) [@jamesblack975](https://forums.kodeco.com/u/jamesblack975)\
**Post date:** [June 7, 2021, 3:10am UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068/4 "2021-06-07T03:10:52Z")

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I am doing work with Kotlin Multiplatform and keep having issues with Navigation, esp since beta08 is out. It seems silly to buy the current book. How can I get a version of the updated book while you are still writing it?

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**Author:** ![filbabic](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/filbabic/32/108144_2.png) [@filbabic](https://forums.kodeco.com/u/filbabic)\
**Post date:** [June 7, 2021, 6:15am UTC](https://forums.kodeco.com/t/already-some-method-not-found-switching-from-alpha10-to-beta01/134068/5 "2021-06-07T06:15:23Z")

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Hey @jamesblack975 !

The book is not aimed at Kotlin Multiplatform users, but rather Android app developers. And in terms of the alpha → beta update, the update has been live for weeks now!

Thanks!