Gradle Sync需要很多时间

Question

Gradle SYNC耗时超过3个小时。代码似乎永远同步（我曾尝试过重启Android Studio，但无济于事），昨天更新Gradle和Android Studio后，我正在观察这一点。它被卡在Gradle Sync Condfigure构建中，并且要花很长时间才能完成和完成

我尝试了以下技巧和技术：

1) Updated Android Studio to 3.5
2) Tried File-->Settings-->Gradle-->Offline Work
3) Internet connection superfast
4) Not behind any Proxy or VPN

apply plugin: 'com.android.application'

//***********************************************************************************************//
def IOTHUB_DEVICE_CONNECTION_STRING_ENV_VAR_NAME = project.hasProperty('DeviceConnectionString') ? '"'+project.property('DeviceConnectionString')+'"' : '"Define Device Connection"'
def STRING='String'
//***********************************************************************************************//

android {
    compileSdkVersion 28

    defaultConfig {
        applicationId "com.iothub.azure.microsoft.com.androidsample"
        minSdkVersion 24
        targetSdkVersion 28
        multiDexEnabled true
        versionCode 1
        versionName "1.0"
        each {
            //buildTypes.mBuildConfigFields 'DATATYPE','VARIABLE',|"GRADLE VARIABLE|"'
            buildConfigField STRING, 'DeviceConnectionString', IOTHUB_DEVICE_CONNECTION_STRING_ENV_VAR_NAME
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude "META-INF/MSFTSIG.SF"
        exclude "META-INF/MSFTSIG.RSA"
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'thirdpartynotice.txt'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:multidex:1.0.3'

    implementation ('com.microsoft.azure.sdk.iot:iot-device-client:1.14.2'){
        exclude module: 'azure-storage'
    }
    implementation ('com.microsoft.azure.android:azure-storage-android:2.0.0@aar')
    implementation ('org.apache.commons:commons-lang3:3.6')
}

repositories {
    mavenCentral()
}