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更新了Android Studio后，出现了许多错误。

android-studioandroid-studio-3.0
6
我正在将旧项目加载到Android Studio中，Android Studio要求我更新，我同意了。然而现在我遇到了错误：
构建失败 10秒30毫秒 运行构建 9秒822毫秒 加载构建 10毫秒 配置构建 413毫秒 计算任务图 566毫秒 运行任务 8秒826毫秒 null
C:/Users/my name/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0-alpha1.aar/24c78a15e89c609bfeae2b7928d5d678/res/values-v26/values-v26.xml
C:/Users/my name/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0-alpha1.aar/24c78a15e89c609bfeae2b7928d5d678/res/values-v28/values-v28.xml
W:/android-studio-projects/sharedid C:/Users/my name/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0-alpha1.aar/24c78a15e89c609bfeae2b7928d5d678/res/values/values.xml null 关联引用失败。
"运行任务"日志为：

org.gradle.api.tasks.TaskExecutionException: 任务执行失败：':app:processDebugResources'。 在 org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:100) 在 org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70) 在 org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51) 在 org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62) 在 org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54) 在 org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:60) 在 org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:97) 在 org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:87) 在 org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52) 在 org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) 在 org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54) 在 org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) 在 org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34) 在 org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:248) ...

...

在我的

W:\android-studio-projects\sharedid\app\src\main\AndroidManifest.xml

我有的文件

<uses-sdk
  android:minSdkVersion="14"
  android:targetSdkVersion="25"
/>

...

In my 

W:\android-studio-projects\sharedid\app\build.gradle

我手头拥有的文件

compileSdkVersion 25

and 

dependencies {
    api 'com.google.android.gms:play-services-maps:+'
    api 'com.google.android.gms:play-services-location:+'
    api 'com.android.support:appcompat-v7:+'
    api 'com.github.PhilJay:MPAndroidChart:v2.0.8'
}

也尝试过

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.google.android.gms:play-services-maps:+'
    implementation 'com.google.android.gms:play-services-location:+'
    implementation 'com.android.support:appcompat-v7:+'
    implementation 'com.github.PhilJay:MPAndroidChart:v2.0.8'
}

这里是整个文件

android {
    defaultConfig {
      applicationId "com.example.customer.app"
    }

    signingConfigs {
        release {
        }
    }

    compileSdkVersion 25

    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
            signingConfig signingConfigs.release
        }
    }

    repositories {
        maven { url "https://jitpack.io" }
    }

}

dependencies {
    api 'com.google.android.gms:play-services-maps:+'
    api 'com.google.android.gms:play-services-location:+'
    api 'com.android.support:appcompat-v7:+'
    api 'com.github.PhilJay:MPAndroidChart:v2.0.8'
}

...

My 

W:\android-studio-projects\sharedid\build.gradle

看起来像这样

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {

    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.1'
    }
}

allprojects {
    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
}

我在解决Android问题时感到迷茫...似乎这不是由我的代码引起的，而是由appcompat引起的。无论如何，有什么方法可以解决/修复这个问题吗？

...

更新4月23日： 我已经进行了以下修复

在W:\android-studio-projects\sharedid\build.gradle中

dependencies {
    classpath 'com.android.tools.build:gradle:+'
}

在 W:\android-studio-projects\sharedid\app\build.gradle 中。
defaultConfig {
  applicationId "com.example.company.app"
  minSdkVersion 14
  compileSdkVersion 25
}

这导致了一系列新的错误-但我认为这是进步：

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:processDebugResources'. at

...

java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55) at java.lang.Thread.run(Thread.java:745) Caused by: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource linking failed Output: W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:3: warn: generated id 'android:id/background' for external package 'android'. W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:5: warn: generated id 'android:id/progress' for external package 'android'. W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:4: warn: generated id 'android:id/secondaryProgress' for external package 'android'. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:7: error: resource android:attr/colorError not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:11: error: resource android:attr/colorError not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:15: error: style attribute 'android:attr/keyboardNavigationCluster' not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:7: error: resource android:attr/dialogCornerRadius not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:11: error: resource android:attr/dialogCornerRadius not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontStyle not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/font not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontWeight not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontVariationSettings not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/ttcIndex not found. error: failed linking references.

Command: C:\Users\%Username%.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-alpha11-4662957-windows.jar\fc4f56a13b0b656fb51bcc296aa62bd7\aapt2-3.2.0-alpha11-4662957-windows\aapt2.exe link -I\ D:\Java-Android-SDK\platforms\android-25\android.jar\ --manifest\ W:\android-studio-projects\sharedid\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\ -o\ W:\android-studio-projects\sharedid\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\ -R\ @W:\android-studio-projects\sharedid\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ W:\android-studio-projects\sharedid\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\ --custom-package\ com.example.company.app\ -0\ apk\ --output-text-symbols\ W:\android-studio-projects\sharedid\app\build\intermediates\symbols\debug\R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.0-alpha11-4662957-windows Daemon #0 Output: W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:3: AAPT: warn: generated id 'android:id/background' for external package 'android'.

W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:5: AAPT: warn: generated id 'android:id/progress' for external package 'android'.

W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:4: AAPT: warn: generated id 'android:id/secondaryProgress' for external package 'android'.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values-v26\values-v26.xml:9:5-12:13: AAPT: error: resource android:attr/colorError not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values-v26\values-v26.xml:13:5-16:13: AAPT: error: resource android:attr/colorError not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values-v26\values-v26.xml:17:5-93: AAPT: error: style attribute 'android:attr/keyboardNavigationCluster' not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values-v28\values-v28.xml:9:5-12:13: AAPT: error: resource android:attr/dialogCornerRadius not found.

W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:11: AAPT: error: resource android:attr/dialogCornerRadius not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values\values.xml:148:5-153:84: AAPT: error: resource android:attr/fontStyle not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values\values.xml:148:5-153:84: AAPT: error: resource android:attr/font not found.

C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values\values.xml:148:5-153:84: AAPT: error: resource android:attr/fontWeight not found. C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values\values.xml:148:5-153:84: AAPT: error: resource android:attr/fontVariationSettings not found. C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\appcompat-v7-28.0.0-alpha1.aar\19b5707f382b2fef8a056030a0107fe4\res\values\values.xml:148:5-153:84: AAPT: error: resource android:attr/ttcIndex not found. error: failed linking references. Command: C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-alpha11-4662957-windows.jar\fc4f56a13b0b656fb51bcc296aa62bd7\aapt2-3.2.0-alpha11-4662957-windows\aapt2.exe link -I\ D:\Java-Android-SDK\platforms\android-25\android.jar\ --manifest\ W:\android-studio-projects\sharedid\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\ -o\ W:\android-studio-projects\sharedid\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\ -R\ @W:\android-studio-projects\sharedid\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ W:\android-studio-projects\sharedid\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\ --custom-package\ com.example.company.app\ -0\ apk\ --output-text-symbols\ W:\android-studio-projects\sharedid\app\build\intermediates\symbols\debug\R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.0-alpha11-4662957-windows Daemon #0 at com.android.build.gradle.internal.res.Aapt2ErrorUtils.rewriteException(Aapt2ErrorUtils.kt:97) at com.android.build.gradle.internal.res.Aapt2ErrorUtils.rewriteLinkException(Aapt2ErrorUtils.kt:73) at com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask.invokeAaptForSplit(LinkApplicationAndroidResourcesTask.java:519) at com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask.doFullTaskAction(LinkApplicationAndroidResourcesTask.java:269) at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:106) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50) at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39) at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:124) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336) at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328) at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:113) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:95) ... 33 more Caused by: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource linking failed Output: W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:3: warn: generated id 'android:id/background' for external package 'android'. W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:5: warn: generated id 'android:id/progress' for external package 'android'. W:\android-studio-projects\sharedid\app\src\main\res\drawable\layerlist_micratingstars.xml:4: warn: generated id 'android:id/secondaryProgress' for external package 'android'. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:7: error: resource android:attr/colorError not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:11: error: resource android:attr/colorError not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v26\values-v26.xml:15: error: style attribute 'android:attr/keyboardNavigationCluster' not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:7: error: resource android:attr/dialogCornerRadius not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values-v28\values-v28.xml:11: error: resource android:attr/dialogCornerRadius not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontStyle not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/font not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontWeight not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/fontVariationSettings not found. W:\android-studio-projects\sharedid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:235: error: resource android:attr/ttcIndex not found. error: failed linking references.

Command: C:\Users\%UserName%.gradle\caches\transforms-1\files-1.1\aapt2-3.2.0-alpha11-4662957-windows.jar\fc4f56a13b0b656fb51bcc296aa62bd7\aapt2-3.2.0-alpha11-4662957-windows\aapt2.exe link -I\ D:\Java-Android-SDK\platforms\android-25\android.jar\ --manifest\ W:\android-studio-projects\sharedid\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\ -o\ W:\android-studio-projects\sharedid\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\ -R\ @W:\android-studio-projects\sharedid\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ W:\android-studio-projects\sharedid\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\ --custom-package\ com.example.company.app\ -0\ apk\ --output-text-symbols\ W:\android-studio-projects\sharedid\app\build\intermediates\symbols\debug\R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.0-alpha11-4662957-windows Daemon #0 at com.android.builder.internal.aapt.v2.Aapt2DaemonImpl.doLink(Aapt2DaemonImpl.kt:177) at com.android.builder.internal.aapt.v2.Aapt2Daemon.link(Aapt2Daemon.kt:103) at com.android.builder.internal.aapt.v2.Aapt2DaemonManager$LeasedAaptDaemon.link(Aapt2DaemonManager.kt:176) at com.android.builder.core.AndroidBuilder.processResources(AndroidBuilder.java:811) at com.android.build.gradle.internal.res.LinkApplicationAndroidResourcesTask.invokeAaptForSplit(LinkApplicationAndroidResourcesTask.java:517) ... 50 more

1
你正在使用哪个版本的Android Studio？可以提供你应用程序的build.gradle文件吗？很奇怪你正在使用compileSdkVersion 25，而应用程序支持尝试使用适用于Android P（28）的库。 - xiaomi
已更新到 Android Studio 的 3.0 版本 -- 或许我不应该这样做，但我的经验是，越久等待更新，最后遇到的错误就会越多。 - Tom
我已经尝试了所有的方法 - 结果都一样。 - Tom
@xiaomi 我也不明白 :( 如果你需要更多信息，请告诉我。 - Tom
@Tom 当你更新Android Studio（我猜测是从2.3版本开始），它需要修改你的两个build.gradle文件中的一些元素。为了帮助你，请编辑你的问题并附上这两个文件。（位于你的项目文件夹和应用程序文件夹中）。 - xiaomi
显示剩余2条评论
7个回答
2
  1. W:\android-studio-projects\sharedid\app\src\main\AndroidManifest.xml

---> 您不需要添加

<uses-sdk
    android:minSdkVersion="14"
    android:targetSdkVersion="25"
/>

  1. W:\android-studio-projects\sharedid\app\build.gradle 

    android {
compileSdkVersion 27
defaultConfig {
    applicationId "com.example.customer.app"
    minSdkVersion 15
    targetSdkVersion 27
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
        signingConfig signingConfigs.release
    }
}
repositories {
    maven { url "https://jitpack.io" }
}
}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.google.android.gms:play-services-maps:15.0.0'
implementation 'com.google.android.gms:play-services-location:15.0.0'
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.github.PhilJay:MPAndroidChart:v2.0.8'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

  2. W:\android-studio-projects\sharedid\build.gradle

    buildscript {

repositories {
    google()
    maven {
        url 'https://maven.google.com/'
        name 'Google'
    }
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.1'

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

allprojects {
repositories {
    google()
    maven {
        url 'https://maven.google.com/'
        name 'Google'
    }
    jcenter()
}
}

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

你可以试试它。

非常感谢。它起作用了。感谢所有试图帮助我的人。作为一个“全才”，当我1年半后回到我的旧应用项目时，有时几乎像重新开始一样。 - Tom
1
你可以通过更新应用程序的compileSdk版本和build gradle来解决此问题。 首先将应用程序的构建工具版本更新为3.1.1。
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.1'
}

首先，更改应用程序的compileSdkVersion版本。更新compileSdkVersion有两种方法：

1.指定buildToolVersion

defaultConfig {
    applicationId "com.robosoft.sampleproject"
    minSdkVersion 14
    compileSdkVersion 25
    buildToolsVersion '26.0.2'
}

2.如果您没有指定构建工具版本，请将compilSdkVersion增加到26，以适用于gradle 3.1.1。

defaultConfig {
    applicationId "com.robosoft.sampleproject"
    minSdkVersion 14
    compileSdkVersion 25
}
1
在 build.gradle(app) 文件中，请尝试更改依赖项。
dependencies {

    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:25.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
谢谢尝试 - 似乎没有解决问题 - 但我已经将您的代码添加到我的SO帖子中，并赞同了您的答案。 - Tom
1
  1. 转到文件>项目结构(ctrl+ALT+Shift+S)
  2. 点击第二个按钮(项目)，将版本等级更改为4.4
它已经设置为版本4.4 - 但我仍然会点赞您的答案。感谢您尝试帮助。 - Tom
我在gradle文件中进行了更改，这意味着我认为我取得了进展，但仍然存在问题。我会更新帖子。 - Tom
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从项目中移除gradle，并让Android Studio创建一个。
我在gradle文件中进行了更改，这意味着我认为我取得了进展，但仍然存在问题。我将更新帖子。 - Tom
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虽然这个问题已经有了答案，但是对我来说并没有起作用。对于很多开发者来说，他们可能仍然面临这个问题，并且无法通过上述任何解决方法进行修复。请看看对我有用的方法。 我注意到在gradle.properties文件中有两行新内容，

android.useAndroidX=true
android.enableJetifier=true

在 gradle.properties 中将这两个注释掉后，我的所有问题都解决了，并成功构建了项目。希望这能帮助到一些开发者找到解决方案。

0

当你更新Android Studio时，它总是要求你更新gradle版本。

如果你允许更新gradle版本，你的整个构建文件需要更新，如API和目标版本，这很难跟踪。

你可以先重新导入为新项目，不允许升级gradle版本，然后尝试编译，如果成功编译，则更新与新Android Studio相关的gradle版本。

@Farez，当被问到时，我对所有事情都回答“是”。但是没错——一定是出了什么问题。我会尝试你的建议。 - Tom
1
只需导入干净的副本，不要升级Gradle，我之前在我的代码中遇到了这个问题。 - Faraz Ahmed
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