Question

我刚刚第一次下载了android studio，而且我得到了gradle错误。我已经下载了SDK提供的所有内容，但仍然存在相同的错误。

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "com.example.noelly.myapplication"
    minSdkVersion 19
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.+'
testCompile 'junit:junit:4.12'
}

我得到的错误是

  (Failed to resolve: com.android.support.appcompat-v7:25.+)

和

(Failed to resolve: com.android.support.espresso:espresso-core:2.2.2)

顺便说一下，所有事情都是最新的，请帮助这真是令人沮丧的开始。

**编辑答案 - 安装工具图片--- sdktoolsscreenshot

代码表单项目build.gradle

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

buildscript {
repositories {
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:2.2.3'

    // 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
}

新错误讯息_____ newerrorscreenshot

Answer 1

failed to resolve com.android.support.espresso:espresso-core:2.2.2

This error can occur when we refactor layout name.

I had the same problem and my mistake was that I had created the layout naming test.xml and then when I refactored that name with like layout_offers.xml, my gradle was changed something like

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.detail_layout.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    })

Whereas It should be like follow

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})

So, one solution is that we should avoid using test.xml as a layout name.

Answer 2

以下是您的gradle文件的外观：

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "com.example.noelly.myapplication"
    minSdkVersion 19
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:25.1.0'
}

<强>更新您下载的SDK一定有问题。导航到C：/ Users / Noelly / AppData / Local / Android / Sdk / extras / android / m2repository / com / android并删除support文件夹。

现在打开SDK Manager并重新安装Android Support Repository。

Answer 3

重命名布局文件后，我收到了同样的错误消息，尽管之前所有内容都已完成。我通过从gradle注释掉这些行来解决这个问题：

androidTestCompile('com.android.support.detail_layout.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

我不知道为什么会这样，或者这是一个很好的修复方法，只是希望这对于像我这样的初学者来说可以快速解决。

Answer 4

我遇到了同样的麻烦，我找到了解决问题的方法。这是因为我使用的是x86操作系统，而android studio则是x64。我去了https://developer.android.com/studio/index.html并按了'下载选项'，并安装了x86版本的android studio。不要卸载以前的x64 android studio。这是因为android sdk所必需的。在任何地方解压缩你的x86 android studio，找到'bin'文件夹。应该有你的'studio.exe'。

无法解决com.android.support.espresso：espresso-core：2.2.2

4 个答案: