After upgrading my project to use the new rtc-engine and version 2.9 of the UI, I encountered the following error:

java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/enums/EnumEntriesKt;

What is the recommended way to resolve this error?

After upgrading my project to use the new rtc-engine and version 2.9 of the UI, I encountered the following error:

java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/enums/EnumEntriesKt;

What is the recommended way to resolve this error?

• java
• android
• kotlin
• callkit
• trtc.io

• In order to have a better chance at getting your question answered, it may be helpful to provide more information about what you are trying to do and what you have already tried. – Mark Tielemans Commented Apr 2 at 8:54
• Please edit the question to provide a minimal reproducible example. – tyg Commented Apr 2 at 9:28

1 Answer 1

The EnumEntriesKt class is part of Kotlin's support for the Enum.entries property, That was introduced in Kotlin 1.8.0. If your project or one of its dependencies (e.g., rtc-engine or UI version 2.9) uses this feature, you need to ensure that your project is using Kotlin 1.8.0 or later version.

Open your build.gradle file (or build.gradle.kts if you're using Kotlin DSL).
Update the Kotlin version in the plugins block or buildscript block.
If you're using the plugins block:

plugins {
    id ".jetbrains.kotlin.jvm" version "1.8.22" // Use the latest compatible version
}

If you're using the buildscript block:

buildscript {
    ext.kotlin_version = "1.8.22" // Use the latest compatible version
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath ".jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}