无法解析 com.google.android.gms:play-services-location:16.+

Question

伙计们，当我尝试在真实设备上运行我的应用程序但升级到 1.22.2 后发现错误：

 Required by:
     project :app > project :location
  > Failed to list versions for com.google.android.gms:play-services-location.
     > Unable to load Maven meta-data from https://jcenter.bintray.com/com/google/android/gms/play-services-location/maven-metadata.xml.
        > Could not get resource 'https://jcenter.bintray.com/com/google/android/gms/play-services-location/maven-metadata.xml'.
           > Could not GET 'https://jcenter.bintray.com/com/google/android/gms/play-services-location/maven-metadata.xml'.
              > Read timed out

• 尝试：使用 --stacktrace 选项运行以获取堆栈跟踪。使用 --info 或 --debug 选项运行以获得更多日志输出。运行 --scan 以获得完整的见解。

我的 android\app\build.gradle：

    def localProperties = new Properties()
    def localPropertiesFile = rootProject.file('local.properties')
    if (localPropertiesFile.exists()) {
        localPropertiesFile.withReader('UTF-8') { reader ->
            localProperties.load(reader)
        }
    }
    
    def flutterRoot = localProperties.getProperty('flutter.sdk')
    if (flutterRoot == null) {
        throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
    }
    
    def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
    if (flutterVersionCode == null) {
        flutterVersionCode = '1'
    }
    
    def flutterVersionName = localProperties.getProperty('flutter.versionName')
    if (flutterVersionName == null) {
        flutterVersionName = '1.0'
    }
    
    apply plugin: 'com.android.application'
    apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
    
    def keystoreProperties = new Properties()
    def keystorePropertiesFile = rootProject.file('key.properties')
    if (keystorePropertiesFile.exists()) {
        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
    }
    
    android {
        compileSdkVersion 28
    
        lintOptions {
            disable 'InvalidPackage'
        }
    
        defaultConfig {
            applicationId "io.bujupah.hestia"
            minSdkVersion 17
            targetSdkVersion 28
            versionCode flutterVersionCode.toInteger()
            versionName flutterVersionName
            multiDexEnabled true
        }
    
        signingConfigs {
            release {
                keyAlias keystoreProperties['keyAlias']
                keyPassword keystoreProperties['keyPassword']
                storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
                storePassword keystoreProperties['storePassword']
            }
        }
        buildTypes {
            release {
                signingConfig signingConfigs.release
            }
        }
    }
    
    flutter {
        source '../..'
    }
    
    dependencies {
        implementation 'com.google.android.gms:play-services-auth:16.0.1'
        testImplementation'junit:junit:4.12'
        testImplementation 'org.mockito:mockito-core:2.17.0'
        implementation 'com.android.support:multidex:1.0.3'
    }

我的 android\build.gradle：

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.2'
    }
}

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

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

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

当我运行 flutter --version:

Flutter 1.22.4 • 通道稳定 • https://github.com/flutter/flutter.git 框架 • 修订版 1aafb3a8b9 （4 个月前）• 2020-11-13 09:59:28 -0800 引擎• 修订 2c956a31c0 工具• Dart 2.10.4

我的位置插件：

 # flutter_map_marker_cluster: any
  flutter_polyline_points: ^0.2.4
  geolocator: ^6.1.1
  geocoding: ^1.0.5
  location: ^3.0.2

Answer 1

解决办法是更新

dependencies {
        com.android.tools.build:gradle:3.6.2
    }

到

dependencies {
        classpath 'com.android.tools.build:gradle:4.1.0'
    }

然后将distributionUrl更新为

distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip

Answer 2

以下更改对我有用

//Project level build.gradle

buildscript {
    ext.kotlin_version = '1.3.50'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.+'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.10'
    }
}


//App level build.gradle

configurations.all {
    resolutionStrategy {
        force 'com.google.android.gms:play-services-location:16.0.0'
    }
}
dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.google.firebase:firebase-analytics:17.2.2'
    implementation 'com.google.android.gms:play-services-location:16.0.0'//add this line 
}

Answer 3

用mavenCentral() 替换Jcenter() 对我有用。

repositories {
    google()
    mavenCentral()  // Add this
    jcenter()    // remove this   
}

Answer 4

网站因维护而停机，寻找 jcenter() 替代方案或等到他们解决问题。

Answer 5

对于那些没有用 AzizDev 的解决方案解决问题的人，试试这个解决方案：

也许你的一些依赖已经过时了。所以，在终端运行这个命令来升级它们，然后运行项目

flutter pub upgrade --major-versions

Answer 6

转到您的 .pub-cache/hosted/pub.dartlang.org/ 转到您的插件，然后转到 android 文件夹/ 更改您的 com.google.android.gms:play-services-location 的版本:16.+ 到特定版本。然后它会完美运行

注意：您的 .pub/cache 文件夹路径在 Windows 中应该不同，如果 .pub-cache 文件夹被隐藏，您还需要取消隐藏它

Answer 7

只需检查您的 Flutter 项目中的 gradle 版本，如下所示：

/android/build.gradle:

dependencies {
    classpath 'com.android.tools.build:gradle:4.1.3'
    ...
}

/android/gradle/wrapper/gradle-wrapper.properties:

...
distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip