Duplicate Kotlin class: how to fix "Duplicate class" error in Android

Hi everyone! I'm a beginner in Kotlin and Android development, and I've encountered an error that I can't seem to fix. When building the project, I get: Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.0 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0) I'm using Android Studio, project in Kotlin. In build.gradle (app) I have the following dependencies: dependencies { implementation 'androidx.core:core-ktx:1.9.0' implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.0' implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.0' implementation 'com.squareup.retrofit2:retrofit:2.9.0' implementation 'com.google.code.gson:gson:2.10.1' } I read that this is because