无法解决：com.android.support:appcompat-v7:26.0.0

我在Android studio中遇到此问题.

Error:(22, 13) Failed to resolve: com.android.support:appcompat-v7:26.0.0
<a href="install.m2.repo">Install Repository and sync project</a><br><a href="openFile:C:/Users/username/AndroidStudioProjects/ElectroSave/app/build.gradle">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

这是我的Gradle代码：

apply plugin: 'com.android.application'

android {
       compileSdkVersion 26
      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-v7:26.0.0'
}

解决方法:

要从版本26.0.0开始使用支持库,您需要将Google的Maven存储库添加到项目的build.gradle文件中,如下所述：https://developer.android.com/topic/libraries/support-library/setup.html

allprojects {
        repositories {
            jcenter()
            maven {
                url "https://maven.google.com"
            }
        }
    }

对于Android Studio 3.0.0及更高版本：

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