Kotlin Error : Could not find org.jetbrains.kotlin

问题:

I installed the Kotlin plugin into my app (v. v1.1.1-release-Studio2.2-1) and then selected "Configure Kotlin in Project" I selected compiler and runtime version of 1.0.7. Kotlin updated my Gradle files. Now when I try to build in I get:

Error: A problem occurred configuring project ':app'. Could not resolve all dependencies for configuration ':app:_debugApkCopy'. Could not find org.jetbrains.kotlin:kotlin-stdlib-jre7:1.0.7. Required by:

MyApplication:app:unspecified

I'm not sure what I'm missing here.

回答1:

replace

implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

with

implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

Since the version with jre is absolute , just replace and sync the project

Happy Coding :)

回答2:

In Project level build.gradle use only this version

ext.kotlin_version = '1.1.1'

Remove other version

EDIT: This will only work for Android Studio 2.X

回答3:

The split of kotlin-stdlib into kotlin-stdlib-jre7 and kotlin-stdlib-jre8 was only introduced with Kotlin 1.1, that's why the dependency cannot be resolved, the package version simply does not exist.

It looks like the update to your project files failed at some point and set the Kotlin version to 1.0.7. If this is a new project and there's nothing holding you back from using 1.1.1, I'd switch to that. Your problem should be gone after doing this.

回答4:

In "build.gradle" file, change current Kotlin version that line and press synk:

ext.kotlin_version = '1.1.1'

/// That will look like:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext.kotlin_version = '1.1.1'
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

回答5:

Starting with Kotlin 1.1.2, the dependencies with group org.jetbrains.kotlin are by default resolved with the version taken from the applied plugin. You can provide the version manually using the full dependency notation like:

compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"

If you're targeting JDK 7 or JDK 8, you can use extended versions of the Kotlin standard library which contain additional extension functions for APIs added in new JDK versions. Instead of kotlin-stdlib, use one of the following dependencies:

compile "org.jetbrains.kotlin:kotlin-stdlib-jdk7"
compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"

回答6:

buildscript {
    **ext.kotlin_version = '1.1.1'**  //Add this line
    repositories {
        **jcenter()**                 //Add this line
        google()
    }
    dependencies {
//        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath 'com.android.tools.build:gradle:3.1.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        **jcenter()**                 //Add this line
        google()`enter code here`enter code here`
        maven { url "https://jitpack.io" }
    }
}

回答7:

1. Please check current version of your Kotlin in below path,

   C:\Program Files\Android\Android Studio\gradle\m2repository\org\jetbrains\kotlin\kotlin-stdlib\1.0.5

change to that version (1.0.5) in project level gradle file.

You can see in your above path does not mentioned any Java - jre version, so remove in your app level gradle file as below,

compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"

回答8:

This is what worked for me: Using Gradle 4.8.1

buildscript {
    ext.kotlin_version = '1.1.1' 
repositories {
    jcenter()
    google()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.0'}
}
allprojects {
    repositories {
        mavenLocal()
        jcenter()
        google()
        maven {
            url "$rootDir/../node_modules/react-native/android"
        }
    maven {
            url 'https://dl.bintray.com/kotlin/kotlin-dev/'
    }
  }
}   

回答9:

A new solution if you use Android Studio 3.2, I solved this issue by added mavenCentral() to build.gradle of the project:

buildscript {
    ext.kotlin_version = '1.3.0'
    repositories {
        mavenCentral()
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

    }
}

allprojects {
    repositories {
        mavenCentral()
        google()
        jcenter()
    }
}

You should add the line as this order, the credited is for this answer

回答10:

https://stackoverflow.com/a/44148210/8056898

Change Kotlin version as per your current version in system.

回答11:

I have solved this issue using deselection of the Offline work option in Settings

回答12:

In case a (transitive) dependency still uses the jre variant of the Kotlin library, you can force the use of the jdk variant with the help of a resolution strategy:

configurations.all {
    resolutionStrategy {
        eachDependency { DependencyResolveDetails details ->
            details.requested.with {
                if (group == "org.jetbrains.kotlin" && name.startsWith("kotlin-stdlib-jre")) {
                    details.useTarget(group: group, name: name.replace("jre", "jdk"), version: version)
                    details.because("Force use of 'kotlin-stdlib-jdk' in favor of deprecated 'kotlin-stdlib-jre'.")
                }
            }
        }
    }
}