Android 配置根项目时出现问题'；安卓&x27；运行颤振项目时

我在第一次运行flutter项目时出现了这个错误

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not resolve com.android.tools.build:gradle:3.5.0.
     Required by:
         project :
      > Could not resolve com.android.tools.build:gradle:3.5.0.
         > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.0/gradle-3.5.0.pom'.
            > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.0/gradle-3.5.0.pom'.
               > Remote host closed connection during handshake

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1m 2s
Finished with error: Gradle task assembleDebug failed with exit code 1

我怎样才能修好它？

---

请注意，我正在运行一个关于

genymotion

的项目。您是否可以添加build build.gradle文件，以便我们查看出了什么问题

您的internet工作不正常，或者在gradle中添加google（）

像这样的

allprojects {
repositories {
    google()
    jcenter()
}

}

您的项目的level build.gradle文件中是否有google（）repo？