第一次运行我的flutter应用程序时遇到此异常。请任何人都可以帮助解决此问题
线程“主”中的异常java.net.ConnectException：连接超时：connect在java.net.DualStackPlainSocketImpl.connect0（本机方法）在java.net.DualStackPlainSocketImpl.socketConnect（DualStackPlainSocketImpl.java:79）在java.net.AbstractPlainSocketImpl.doConnect（AbstractPlainSocketImpl.java:350）在java.net.AbstractPlainSocketImpl.connectToAddress（AbstractPlainSocketImpl.java:206）在java.net.AbstractPlainSocketImpl.connect（AbstractPlainSocketImpl.java:188）在java.net.PlainSocketImpl.connect（PlainSocketImpl.java:172）在java.net.SocksSocketImpl.connect（SocksSocketImpl.java:392）在java.net.Socket.connect（Socket.java:589）在sun.security.ssl.SSLSocketImpl.connect（SSLSocketImpl.java:666）在sun.security.ssl.BaseSSLSocketImpl.connect（BaseSSLSocketImpl.java:173）在sun.net.NetworkClient.doConnect（NetworkClient.java:180）在sun.net.www.http.HttpClient.openServer（HttpClient.java:463）在sun.net.www.http.HttpClient.openServer（HttpClient.java:558）在sun.net.www.protocol.https.HttpsClient。（HttpsClient.java:264）在sun.net.www.protocol.https.HttpsClient.New（HttpsClient.java:367）在sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient（AbstractDelegateHttpsURLConnection.java:191）在sun.net.www.protocol.http.HttpURLConnection.plainConnect0（HttpURLConnection.java:1156）在sun.net.www.protocol.http.HttpURLConnection.plainConnect（HttpURLConnection.java:1050）在sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect（AbstractDelegateHttpsURLConnection.java:177）在sun.net.www.protocol.http.HttpURLConnection.getInputStream0（HttpURLConnection.java:1564）在sun.net.www.protocol.http.HttpURLConnection.getInputStream（HttpURLConnection.java:1492）在sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream（HttpsURLConnectionImpl.java:263）在org.gradle.wrapper.Download.downloadInternal（Download.java:58）在org.gradle.wrapper.Download.download（Download.java:44）在org.gradle.wrapper.Install $ 1.call（Install.java:61）在org.gradle.wrapper.Install $ 1.call（Install.java:48）在org.gradle.wrapper.ExclusiveFileAccessManager.access（ExclusiveFileAccessManager.java:65）在org.gradle.wrapper.Install.createDist（Install.java:48）在org.gradle.wrapper.WrapperExecutor.execute（WrapperExecutor.java:128）在org.gradle.wrapper.GradleWrapperMain.main（GradleWrapperMain.java:61）错误完成：Gradle任务assembleDebug失败，退出代码为1
以下是我解决该问题所遵循的步骤。
在您的操作系统（不是Android Studio Shell）给出的命令提示符下运行flutter。
确保您的互联网连接良好。