【发布时间】：2020-10-26 15:38:07
【问题描述】：
我安装了 Android Studio 4.1 并安装了所有的 SDK 和 JDK 8 等。
当我想在我的项目中运行这个 flutter run 时，我看到了这个错误：
C:\Users\Farshad\Desktop\myapp>flutter run
Launching lib\main.dart on Nokia 6 1 in debug mode...
Exception in thread "main" java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 403 Request blocked by Privoxy"
at sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2152)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect0(HttpURLConnection.java:2739)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect(HttpURLConnection.java:2651)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1830)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268)
at org.gradle.wrapper.Download.downloadInternal(Download.java:58)
at org.gradle.wrapper.Download.download(Download.java:44)
at org.gradle.wrapper.Install$1.call(Install.java:61)
at org.gradle.wrapper.Install$1.call(Install.java:48)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65)
at org.gradle.wrapper.Install.createDist(Install.java:48)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 17.9s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception in thread "main" java.io.IOException: Unable to tunnel through proxy. Proxy returns "HTTP/1.1 403 Request blocked by Privoxy"
at sun.net.www.protocol.http.HttpURLConnection.doTunneling(HttpURLConnection.java:2152)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect0(HttpURLConnection.java:2739)
at sun.net.www.protocol.http.HttpURLConnection.followRedirect(HttpURLConnection.java:2651)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1830)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268)
at org.gradle.wrapper.Download.downloadInternal(Download.java:58)
at org.gradle.wrapper.Download.download(Download.java:44)
at org.gradle.wrapper.Install$1.call(Install.java:61)
at org.gradle.wrapper.Install$1.call(Install.java:48)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65)
at org.gradle.wrapper.Install.createDist(Install.java:48)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:128)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 8.9s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception: Gradle task assembleDebug failed with exit code 1
【问题讨论】：