伙计们，当我试图在真实的设备上运行我的应用程序，但我发现升级到1. 22. 2后的错误：

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选项运行以获取更多日志输出。使用--scan运行以获取完整的见解。

我的安卓系统\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'
    }

我的安卓系统\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时--版本：
Flutter1.22.4 ·通道稳定·https://github.com/flutter/flutter.git框架·修订版1aafb 3a 8b 9（4个月前）· 2020年11月13日09：59：28 - 0800引擎·修订版2c 956 a31 c 0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