Question

我刚用Android Studio开始了一个项目。我突然开始遇到布局预览问题。预览会正常渲染屏幕，但我会看到一个恼人的Rendering Problems窗口，上面写着：

Rendering Problems The following classes could not be found:
- android.support.v7.internal.app.WindowDecorActionBar (Fix Build Path, Create Class)
Tip: Try to build the project.

当然，我尝试了很多东西。

构建项目
清理并重建项目
清理，重建，同步，然后重新重建
在执行上述任何操作之前清理应用数据
卸载并重新安装android studio，然后重复上述步骤。

知道问题可能是什么？

我的build.gradle是：

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

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

apply plugin: 'com.android.application'

android {
    signingConfigs {
    }
    compileSdkVersion 23
    buildToolsVersion "23.0.1"
    defaultConfig {
        applicationId "gr.asd.asdapp"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    dexOptions {
        jumboMode = true
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:support-v4:23.1.1'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
}

Answer 1

As suggested here

Rendering Problems The following classes could not be found: android.support.v7.internal.app.WindowDecorActionBar

Change your theme to inherit from a Base Theme.

<style name="AppTheme" parent="Theme.AppCompat.Mpla.Mpla">
<!-- Customize your theme here. -->
</style>

with

<style name="AppTheme" parent="Base.Theme.AppCompat.Mpla.Mpla">
<!-- Customize your theme here. -->
</style>

Android Studio has a terrible out-of-the-box experience. But it used to be worse. A completely new project that was not using the latest API would yield Obsolete class errors and you had to replace Activity with AppCompatActivity to make it work

Having said that, if you target the latest API your problem will be gone but obviously that's not a solution :)

Android构建失败的任务：＆＃39;：app：transformClassesWithDexForDebug＆＃39;

1 个答案: