Android Studio升级3.2以后 Androidx 异常总结

一.Android resource linking failed

错误日志1

Android resource linking failed
Output:  error: resource style/Theme.AppCompat.Light.DarkActionBar (aka com.hp.sortfilebysize:style/Theme.AppCompat.Light.DarkActionBar) not found.
E:\ASWorkSpace\SortFileBySize\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:9: error: style attribute 'attr/colorPrimary (aka com.hp.sortfilebysize:attr/colorPrimary)' not found.
E:\ASWorkSpace\SortFileBySize\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:10: error: style attribute 'attr/colorPrimaryDark (aka com.hp.sortfilebysize:attr/colorPrimaryDark)' not found.
E:\ASWorkSpace\SortFileBySize\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:11: error: style attribute 'attr/colorAccent (aka com.hp.sortfilebysize:attr/colorAccent)' not found.
error: failed linking references.

Command: C:\Users\tangdekun\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-beta03-4818971-windows.jar\868db5e9c484c628dee78cdbe6877651\aapt2-3.2.0-beta03-4818971-windows\aapt2.exe link -I\
        N:\ProgramFiles\android\sdk\platforms\android-28\android.jar\
        --manifest\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\
        -o\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\
        -R\
        @E:\ASWorkSpace\SortFileBySize\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\
        --auto-add-overlay\
        --java\
        E:\ASWorkSpace\SortFileBySize\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\
        --custom-package\
        com.hp.sortfilebysize\
        -0\
        apk\
        --output-text-symbols\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\symbols\debug\R.txt\
        --no-version-vectors
Daemon:  AAPT2 aapt2-3.2.0-beta03-4818971-windows Daemon #0

错误日志2

Android resource linking failed
Output:  E:\ASWorkSpace\SortFileBySize\app\src\main\res\layout\activity_main.xml:13: error: attribute layout_constraintBottom_toBottomOf (aka com.hp.sortfilebysize:layout_constraintBottom_toBottomOf) not found.
E:\ASWorkSpace\SortFileBySize\app\src\main\res\layout\activity_main.xml:13: error: attribute layout_constraintLeft_toLeftOf (aka com.hp.sortfilebysize:layout_constraintLeft_toLeftOf) not found.
E:\ASWorkSpace\SortFileBySize\app\src\main\res\layout\activity_main.xml:13: error: attribute layout_constraintRight_toRightOf (aka com.hp.sortfilebysize:layout_constraintRight_toRightOf) not found.
E:\ASWorkSpace\SortFileBySize\app\src\main\res\layout\activity_main.xml:13: error: attribute layout_constraintTop_toTopOf (aka com.hp.sortfilebysize:layout_constraintTop_toTopOf) not found.
error: failed linking file resources.

Command: C:\Users\tangdekun\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-beta03-4818971-windows.jar\868db5e9c484c628dee78cdbe6877651\aapt2-3.2.0-beta03-4818971-windows\aapt2.exe link -I\
        N:\ProgramFiles\android\sdk\platforms\android-28\android.jar\
        --manifest\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\
        -o\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\
        -R\
        @E:\ASWorkSpace\SortFileBySize\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\
        --auto-add-overlay\
        --java\
        E:\ASWorkSpace\SortFileBySize\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\
        --custom-package\
        com.hp.sortfilebysize\
        -0\
        apk\
        --output-text-symbols\
        E:\ASWorkSpace\SortFileBySize\app\build\intermediates\symbols\debug\R.txt\
        --no-version-vectors
Daemon:  AAPT2 aapt2-3.2.0-beta03-4818971-windows Daemon #0

错误日志3

Android resource linking failed
Output:  E:\ASWorkSpace\Temp\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:7: error: resource android:attr/dialogCornerRadius not found.
E:\ASWorkSpace\Temp\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:11: error: resource android:attr/dialogCornerRadius not found.
E:\ASWorkSpace\Temp\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:946: error: resource android:attr/fontVariationSettings not found.
E:\ASWorkSpace\Temp\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:946: error: resource android:attr/ttcIndex not found.
error: failed linking references.

Command: C:\Users\tangdekun\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-beta03-4818971-windows.jar\868db5e9c484c628dee78cdbe6877651\aapt2-3.2.0-beta03-4818971-windows\aapt2.exe link -I\
        N:\ProgramFiles\android\sdk\platforms\android-27\android.jar\
        --manifest\
        E:\ASWorkSpace\Temp\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\
        -o\
        E:\ASWorkSpace\Temp\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\
        -R\
        @E:\ASWorkSpace\Temp\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\
        --auto-add-overlay\
        --java\
        E:\ASWorkSpace\Temp\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\
        --custom-package\
        com.hp.temp\
        -0\
        apk\
        --output-text-symbols\
        E:\ASWorkSpace\Temp\app\build\intermediates\symbols\debug\R.txt\
        --no-version-vectors
Daemon:  AAPT2 aapt2-3.2.0-beta03-4818971-windows Daemon #0

问题出现的原因:

Android studio升级到3.0以上,工程自动会引入Androidx的相关包,当因为某些原因,我们把默认依赖删除以后,就会出现Android resource linking failed,错误日志1是缺少androidx.appcompat:appcompat:1.0.0-alpha1依赖,错误日志2是缺少androidx.constraintlayout:constraintlayout:1.1.2依赖,
错误日志3是因为compileSdkVersion版本不对,应该改为compileSdkVersion 28
解决方案
添加相关依赖即可,如下:

implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.2'

二. java.lang.ClassNotFoundException

  Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider4Util" on path: DexPathList[[zip file "/data/app/com.hp.temp-1/base.apk"],nativeLibraryDirectories=[/data/app/com.hp.temp-1/lib/arm64, /system/lib64, /vendor/lib64, /system/vendor/lib64, /oem/lib, /oem/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.app.ActivityThread.installProvider(ActivityThread.java:5962)
        at android.app.ActivityThread.installContentProviders(ActivityThread.java:5545) 
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5484) 
        at android.app.ActivityThread.-wrap2(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1595) 
        at android.os.Handler.dispatchMessage(Handler.java:110) 
        at android.os.Looper.loop(Looper.java:203) 
        at android.app.ActivityThread.main(ActivityThread.java:6251) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) 
        Suppressed: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/content/FileProvider;
        at java.lang.VMClassLoader.findLoadedClass(Native Method)
        at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:742)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:362)
                ... 12 more
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider" on path: DexPathList[[zip file "/data/app/com.hp.temp-1/base.apk"],nativeLibraryDirectories=[/data/app/com.hp.temp-1/lib/arm64, /system/lib64, /vendor/lib64, /system/vendor/lib64, /oem/lib, /oem/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
                ... 15 more

原因分析:

build.gradle文件如下

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.hp.temp"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.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-jdk7:$kotlin_version"
//    implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
    implementation 'com.android.support:appcompat-v7:27.1.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'
    implementation 'com.blankj:utilcode:1.15.0'
}

原因我依赖了implementation 'com.blankj:utilcode:1.15.0',其中有个FileProvider类找不到,如下:

package android.support.v4.content;

import android.support.annotation.Keep;

/**
 * 
 *     author: Blankj
 *     blog  : http://blankj.com
 *     time  : 2018/04/23
 *     desc  :
 * 
 */
@Keep
public final class FileProvider4Util extends FileProvider {
}

由于androidx的使用,架包的分包方式发生了变化,com.android.support:support-v4被androidx.core代替,但是utilcode架包中并没有使用androidx分包结构,所以就存在问题.

解决方案:

1.不使用androidx分包,将

implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'

  implementation 'com.android.support:appcompat-v7:27.1.1'

虽然后报红,但是不会报错

2.重构到新的androidx命名空间
工具栏 —>Refactor—>Migrate to AndroidX