如何解决未解决的超类型

时间:2019-02-02 04:57:56

标签: android kotlin

我是Kotlin的新手,我没能找到直接解决此问题的方法。我在项目中添加了片段类和布局,并且在执行过程中开始显示此问题。

错误指出, “无法解析以下类的超类。请确保您在类路径中具有正确的依赖项:androidx.app.appcompat.app.AppCompatActivty类,未解析的超类:androidx.core.app.TaskStackBuilder.SupportParentable”。 >

我已附上我的gradle文件内容。

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-android'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "mapp.com.sg.mappfinalassignment"
        minSdkVersion 19
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation 'com.android.support:appcompat-v7:28.0.+'
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
    implementation 'com.google.android.material:material:1.0.0-beta01'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0-beta01'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
    implementation 'com.android.support:recyclerview-v7:28.+'
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:cardview-v7:28.0.0'
    implementation 'com.squareup.picasso:picasso:2.71828'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support:support-fragment:28.0.0'
    implementation 'com.google.android:support-v4:r7'


}
repositories {
    jcenter()
    mavenCentral()
}

我如何使其运行?

1 个答案:

答案 0 :(得分:0)

您不能将新的AndroidX依赖项与旧的依赖项一起使用。您可以尝试在Android Studio中运行Refactor > Migrate to AndroidX或手动转换依赖关系。这是documentation,可以为您提供帮助。