以下类的超类型无法解析

Question

我android app在kotlin其中给我这个错误。

错误：无法解析以下类的超类型。请确保您在类路径中具有必需的依赖项：com.google.firebase.auth.FirebaseAuth类，未解析的超类：com.google.android.gms.internal.aad

和这个

错误：任务'：app：compileDebugKotlin'的执行失败。

编译错误。请参阅日志以获取更多详细信息

这是我的应用程序模块

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "appname"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

     implementation 'com.android.support:appcompat-v7:26.1.0'
     implementation 'com.android.support:animated-vector-drawable:26.1.0'
    implementation 'com.android.support:mediarouter-v7:26.1.0'
   implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support:recyclerview-v7:26.1.0'
    implementation 'com.android.support:cardview-v7:26.1.0'
    implementation 'com.android.support:design:26.1.0'

    implementation 'com.firebaseui:firebase-ui-database:3.0.0'



    //noinspection GradleCompatible,GradleCompatible
    implementation 'com.google.android.gms:play-services:11.0.4'
    implementation 'com.google.firebase:firebase-auth:11.0.4'
    implementation 'com.google.firebase:firebase-database:11.0.4'
    implementation 'com.google.firebase:firebase-storage:11.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

}

 repositories {
    mavenCentral()
}
apply plugin: 'com.google.gms.google-services'

我的项目gradle是这个

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

buildscript {
    ext.kotlin_version = '1.1.51'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        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
        classpath 'com.google.gms:google-services:3.1.0'

    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

我有firebase.auth implementation但仍然在显示错误。

Answer 1

更新com.firebaseui:firebase-ui-auth至3.3.1已为我修复。由于较旧的版本（在我的情况下为3.1.0）与com.google.firebase:firebase-messagingv15 不兼容

Answer 2

我在你的 gradle 文件中至少看到两个问题：

1. 您有一个重复的“kotlin-stdlib-jre7”条目（一个实现和一个编译）。删除最后一个：

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

2. 不使用最新版本的 firebase 和 google play 服务：更新到 firebase 11.6.2