我几乎在大多数项目中都遇到了这个问题，当我想将现有的项目带到Android时，我总是遇到这样的问题，我应该怎么做才能永久解决这个问题？
谷歌已经为伊朗人禁用了这一部分，如果我想事先在Android Studio中导入任何项目，我必须连接到可以导入使用的库的VPN，有没有一种方法可以在不连接VPN的情况下做到这一点，下载库？我可以手动下载一个文件夹中的所有库，然后把所有的网址在项目中，因为它很难连接到VPN，如果它这样做的速度是超级慢。或者是否有其他可以在Android Studio设置中更改的地址，例如Visual Studio中的Nuget，您可以在其中更改接收库的地址并从该地址下载库？

错误文本：

Could not resolve all artifacts for configuration ':classpath'.
    Could not find gradle-4.2.2.jar (com.android.tools.build:gradle:4.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.2.2/gradle-4.2.2.jar
    Could not find builder-4.2.2.jar (com.android.tools.build:builder:4.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/4.2.2/builder-4.2.2.jar
    Could not find aaptcompiler-4.2.2.jar (com.android.tools.build:aaptcompiler:4.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/build/aaptcompiler/4.2.2/aaptcompiler-4.2.2.jar
    Could not find bundletool-1.1.0.jar (com.android.tools.build:bundletool:1.1.0).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/1.1.0/bundletool-1.1.0.jar
    Could not find sdk-common-27.2.2.jar (com.android.tools:sdk-common:27.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/sdk-common/27.2.2/sdk-common-27.2.2.jar
    Could not find sdklib-27.2.2.jar (com.android.tools:sdklib:27.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/sdklib/27.2.2/sdklib-27.2.2.jar
    Could not find common-27.2.2.jar (com.android.tools:common:27.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/common/27.2.2/common-27.2.2.jar
    Could not find protos-27.2.2.jar (com.android.tools.analytics-library:protos:27.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/analytics-library/protos/27.2.2/protos-27.2.2.jar
    Could not find core-proto-0.0.8-alpha01.jar (com.google.testing.platform:core-proto:0.0.8-alpha01).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/google/testing/platform/core-proto/0.0.8-alpha01/core-proto-0.0.8-alpha01.jar
    Could not find zipflinger-4.2.2.jar (com.android:zipflinger:4.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/zipflinger/4.2.2/zipflinger-4.2.2.jar
    Could not find apksig-4.2.2.jar (com.android.tools.build:apksig:4.2.2).
     Searched in the following locations:
         https://dl.google.com/dl/android/maven2/com/android/tools/build/apksig/4.2.2/apksig-4.2.2.jar

字符串

build.Gradle文件

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.2.2"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        jcenter() // Warning: this repository is going to shut down soon
        maven { url "https://jitpack.io" }
    }
}

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

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