如何为 api 28 修复 "Failed to load AppCompat ActionBar with unknown error."？

Question

这个问题与

但是对于 API 28，我再次遇到同样的错误。我的 build.gradle 看起来像这样：

    apply plugin: com.android.application
android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.android.application"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 3
        versionName "1.3"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug{
            ext.enableCrashlytics = false
            ext.alwaysUpdateBuildId = false
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
    implementation 'com.android.support:animated-vector-drawable:28.0.0-alpha3'
    implementation 'com.android.support:support-media-compat:28.0.0-alpha3'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.jjoe64:graphview:4.2.2'
    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'
    implementation files('libs/graphview-4.2.2-javadoc.jar')
}

解决这个问题的方法是什么？

Answer 1

使用实现 'com.android.support:support-media-compat:28.0.0-alpha1' 而不是实现 'com.android.support:support-media-compat:28.0.0-alpha3'。

Answer 2

在您的 Gradle 文件中使用：

compile 'com.android.support:appcompat-v7:26.0.0'
buildToolsVersion '26.0.0' 
classpath 'com.android.tools.build:gradle:3.0.0-alpha8

如何为 api 28 修复 "Failed to load AppCompat ActionBar with unknown error."？

How to fix "Failed to load AppCompat ActionBar with unknown error." for api 28?

android

android-appcompat