# Kotlin and Android Development featuring Jetpack:

**URL:** <https://forum.devtalk.com/t/kotlin-and-android-development-featuring-jetpack/9849>\
**Category:** PragProg Customers\
**Tags:** book-kotlin-and-android-development-featuring-jetpack, suggestion\
**Created:** [24 May 2021 13:43 UTC](https://forum.devtalk.com/t/kotlin-and-android-development-featuring-jetpack/9849 "2021-05-24T13:43:39Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![vickyvalverdeg](https://forum.devtalk.com/user_avatar/forum.devtalk.com/vickyvalverdeg/32/2839_2.png) [@vickyvalverdeg](https://forum.devtalk.com/u/vickyvalverdeg)\
**Post date:** [30 May 2021 04:19 UTC](https://forum.devtalk.com/t/kotlin-and-android-development-featuring-jetpack/9849/3 "2021-05-30T04:19:59Z")

</div>

Thanks @mfazio23 for your answer 😄, I founded the error, I was using a code from beta version of the book, so now with the latest version it works, this is the updated code in `build.gradle`:

```auto
buildscript {
    ext {
        kotlin_version = "1.4.30"
        nav_version= "2.3.3"
    }
// other code 
}

```

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