Android build fails with react native 0.71 - please update kotlin version

[youssdevx]

Current behavior

Build fails on Android

Expected behavior

Build should succeed

To Reproduce

Upgrade to React native 0.71 and build on Android

Platform:

• iOS
• Android

Environment

• "@shopify/flash-list": "1.4.1"
• React Native version: 0.71.3
• Expo SDK 48

How to fix

In android/build.gradle modify:
ext._kotlinVersion = rootProject.ext.has("kotlinVersion") ? rootProject.ext.get('kotlinVersion') : '1.6.20'

[brunosp-49]

Hi men, I'm getting the same error, I tried to copy your solution but it's still not working, have you changed something else?
EDIT: for some reason that I have no idea, worked when I set kotlinVersion = "1.6.0" inside build.gradle and classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion") at dependencies

[youssdevx]

If you're using expo, you can set the kotlin version in app.config.ts

[naqvitalha]

Is this only happening with expo?

[youssdevx]

I don't know 🤷🏽‍♂️

[eduardo-santos-tribia]

I had the same issue and I'm not using Expo. My RN version is 0.71.7.

The fix by @youssdevx worked for me, but I had to remove the _ from kotlinVersion. I don't know the impact of this fix and modifications... would be good if anyone explain more or fix that in a new flash-list update.

This is my modified android/build.gradle file:

buildscript {
    ext {
        ...
        kotlinVersion = rootProject.ext.has("kotlinVersion") ? rootProject.ext.get('kotlinVersion') : '1.6.20'
    }
    ...
}

[Maria4lexzy]

Worked for me as well, I changed it from kotlin_version to kotlinVersion and it works

my android/build.gradle
ext { ... kotlinVersion = '1.7.10' }
dependencies { ... classpath('org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion') }

[kursatalgul]

Worked for me as well, I changed it from kotlin_version to kotlinVersion and it works

my android/build.gradle ext { ... kotlinVersion = '1.7.10' } dependencies { ... classpath('org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion') }

Is it expo ? because There is no android folder in Expo

[techvfxking]

It happened with me also using react native cli