Question

我有一个Flutter项目，在这里我使用的是QR码扫描仪插件，该插件是用Kotlin for Android编写的。将其添加到我的项目后，我在Android中遇到构建问题，iOS正常运行：

Android Studio错误消息：

找不到参数的方法Implementation（） [org.jetbrains.kotlin：kotlin-stdlib-jre7：1.2.31]关于类型的对象 org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler。

我的应用程式摇篮：

buildscript {
    repositories {
        // ...
        maven { url 'https://plugins.gradle.org/m2/' } // Gradle Plugin Portal
    }

    // Added for QR
    apply plugin: 'com.android.application'
    apply plugin: 'kotlin-android'


    dependencies {

        // Added for QR
        implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
        // implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"


        // ...
        // OneSignal-Gradle-Plugin
        classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.10.2, 0.99.99]'
    }
}

apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
    compileSdkVersion 27

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "net.cadsys.app"
        minSdkVersion 16
        targetSdkVersion 27
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile file(keystoreProperties['storeFile'])
            storePassword keystoreProperties['storePassword']
        }
    }

    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

我的项目Gradle：

buildscript {
    ext.kotlin_version = '1.2.31'

    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

apply plugin: 'kotlin'

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

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}
repositories {
    mavenCentral()
}
dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
}
compileKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}
compileTestKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}

任何帮助都会很棒，因为我正要把笔记本电脑扔到窗外。

编辑：在AS提示后，我将Kotlin版本变量更改为ext.kotlin_version ='1.3.1'。现在我得到一个新错误：

找不到org.jetbrains.kotlin：kotlin-gradle-plugin：1.3.1。在以下位置搜索： -https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.1/kotlin-gradle-plugin-1.3.1.pom -https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.1/kotlin-gradle-plugin-1.3.1.jar -https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.1/kotlin-gradle-plugin-1.3.1.pom -https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.1/kotlin-gradle-plugin-1.3.1.jar 要求：项目：

Answer 1

撰写本文时，最新的Kotlin版本是1.3.31。

您还可以选中https://blog.jetbrains.com/kotlin/category/releases/和https://github.com/JetBrains/kotlin/releases

或通过Android Studio> Tools> Kotlin> Configure Kotlin Plugin Updates

另外，请确保您拥有：

buildScript {
    ext.kotlin_version = '1.3.31'
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

您还可以在Kotlin Gradle Plugin上查看哪些插件可用。

替换：

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

具有：

implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"

或

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

如果您非常需要jre7的{{1}}，并且不建议使用，请确保您的Kotlin版本与JRE版本匹配。

检查Kotlin Standard Library JRE 7

找不到JetBrains.Kotlin的实现参数

1 个答案: