相关疑难解决方法(0)

每当我尝试在Kotlin中运行程序时,我都会收到此错误.我的gradle文件是这样的:Project Level Gradle

buildscript {
    ext.kotlin_version = '1.2.30'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:3.2.0'
    }
}
allprojects {
    repositories {
        google()
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

和App Level Gradle

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'
ext.supportLibraryVersion = '27.1.1'
ext.playServices = '11.6.2'
android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.rossa.rossa"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled …