Question

下载SDK 26并更新我的项目后，我遇到了一些我成功修复的库冲突。但我有这个持久的问题，它在论坛或SO中无处可寻。

我的XML预览已损坏。我可以构建和运行程序，但由于这个原因我看不到任何东西：

我试过了：

将主题从Theme.AppCompat.Light.DarkActionBar更改为
Base.Theme.AppCompat.Light.DarkActionBar
Updating my gradle in a similar way
无效缓存/重启
检查并更新了我的所有库并删除了有关gradle的所有错误
更改了预览中的api
所有SDK均已更新。

在我更新到SDK 26之前一切都很好。所有可用的解决方案都不做任何事情。非常感谢帮助

修改

my gradle.build

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'

repositories {
    maven { url 'https://maven.fabric.io/public' }
}


android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "gr.softweb.sakouli"
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }

    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/LGPL2.1'
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile project(path: ':linkedin-sdk')
    compile('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
        transitive = true;
    }
    //    configurations.all {
    //        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
    //            def requested = details.requested
    //            if (requested.group == 'com.android.support') {
    //                if (!requested.name.startsWith("multidex")) {
    //                    details.useVersion '26.0.1'
    //                }
    //            }
    //        }
    //    }
    compile 'com.facebook.android:facebook-android-sdk:4.26.0'
    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
    compile 'com.android.support:design:26.0.0-alpha1'
    compile 'com.android.support:customtabs:26.0.0'
    compile 'com.koushikdutta.ion:ion:2.2.1'
    compile 'com.google.code.gson:gson:2.8.1'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'de.hdodenhof:circleimageview:2.1.0'
    compile 'com.roughike:bottom-bar:2.3.1'
    compile 'com.ncapdevi:frag-nav:2.0.1'
    compile 'com.google.android.gms:play-services-maps:11.0.4'
    compile 'co.lujun:androidtagview:1.1.4'
    compile 'com.google.android.gms:play-services-gcm:11.0.4'
    compile 'com.braintreepayments.api:drop-in:3.1.0'
    testCompile 'junit:junit:4.12'
    apply plugin: 'com.google.gms.google-services'
}

Answer 1

更新以下内容：

compile 'com.android.support:appcompat-v7:26.+'
compile 'com.android.support:design:26.+'

以下为我解决了问题：

compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
compile 'com.android.support:design:26.0.0-alpha1'

Build.gradle文件：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "com.example.myandroidgoogleappengine"
        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'
        }
    }
    packagingOptions {
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE-FIREBASE.txt'
        exclude 'META-INF/NOTICE'
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
    compile 'com.android.support:design:26.0.0-alpha1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'

    compile 'com.google.firebase:firebase-database:11.2.2'
}

apply plugin: 'com.google.gms.google-services'

Answer 2

我遇到了同样的问题。已更新 26.0.0 到 26.0.0-alpha1，问题就解决了。

更新到SDK 26后，Android Studio无法实例化一个或多个类

2 个答案: