Question

错误消息：

Error:Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0.
<a href="openFile:C:/Users/Alexs/AndroidStudioProjects/applicationone/app/build.gradle">Open File</a><br><a href="Unable to resolve dependency for &#39;:app@debug/compileClasspath&#39;: Could not resolve com.android.support:appcompat-v7:26.1.0.">Show Details</a>

此错误伴随着大量类似的依赖项错误。

尝试了方法：

clear caches
重新安装android studio
下载最新的Gradle并替换原来的Gradle。

4。使用build.gradle文件并添加几行

我只是一个想要用java开始一些android项目的学生。

提前致谢。

这是我的高级gradle文件：

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

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'


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

allprojects {
    repositories {
        google()
        jcenter()
    }
}

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

这是我的项目的gradle文件：

apply plugin: 'com.android.application'

repositories {
    maven {
       url "https://s3.amazonaws.com/repo.commonsware.com"
    }
    jcenter()
    google()
}


android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2" // -------------------> Add this
    defaultConfig {
        applicationId "com.example.alexs.applicationone"
        minSdkVersion 21
        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'
        }
        debug {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    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'
    implementation 'com.android.support.test.espresso:espresso-core:3.0.2-alpha1'
}

我的sdk版本是27 btw。

Answer 1

将buildToolsVersion "26.0.2"添加到build.gradle文件中，如下所示：

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2" // -------------------> Add this
    defaultConfig {
        applicationId "com.example.alexs.applicationone"
        minSdkVersion 21
        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'
        }
        debug {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

Answer 2

在您的顶级build.gradle文件中，不是您发布的应用模块，请添加以下块：

allprojects {
    repositories {
        google()
    }
}

或者在您的app/build.gradle文件（您发布的文件）中添加google存储库：

repositories {
    maven {
       url "https://s3.amazonaws.com/repo.commonsware.com"
    }
    jcenter()
    google()
}

gradle proj sync失败，每个方法都尝试过

2 个答案: