新手打开 Android Studio，自动下载完一个安装包后，出现报错。

Build file '/Users/dengzemiao/Desktop/Project/android/MyApplication7/build.gradle.kts' line: 2

Plugin [id: 'com.android.application', version: '8.5.1', apply: false] was not found in any of the following sources:

* Try:
> 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.

* Exception is:
org.gradle.api.plugins.UnknownPluginException: Plugin [id: 'com.android.application', version: '8.5.1', apply: false] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Included Builds (No included builds contain this plugin)
- Plugin Repositories (could not resolve plugin artifact 'com.android.application:com.android.application.gradle.plugin:8.5.1')
  Searched in the following repositories:

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是因为之前配置的代理残留在 gradle.Properties，所以一直配置出错。

解决办法：

1、确保代理都删除关闭，可以在设置中搜搜 proxy 选择 no proxy 保存。

2、打开项目的时候，如果弹出 proxy 配置，直接取消代理勾选，保存，没弹出不管。

3、找到本地的 gradle.Properties 文件处

• win 路径：c盘/用户/.gradle/gradle.Properties

• mac 路径：/Users/你的电脑名称/.gradle/gradle.properties

  找到后，用文本编辑器打开，注释或删掉下面代码：

  ## For more details on how to configure your build environment visit
  # http://www.gradle.org/docs/current/userguide/build_environment.html
  #
  # Specifies the JVM arguments used for the daemon process.
  # The setting is particularly useful for tweaking memory settings.
  # Default value: -Xmx1024m -XX:MaxPermSize=256m
  # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
  #
  # When configured, Gradle will run in incubating parallel mode.
  # This option should only be used with decoupled projects. For more details, visit
  # https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
  # org.gradle.parallel=true
  #Wed Nov 13 16:13:01 CST 2024
  systemProp.http.proxyHost=
  systemProp.http.proxyPort=8080
  systemProp.https.proxyHost=android-mirror.bugly.qq.com
  systemProp.https.proxyPort=8080
  

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  改成：

  ## For more details on how to configure your build environment visit
  # http://www.gradle.org/docs/current/userguide/build_environment.html
  #
  # Specifies the JVM arguments used for the daemon process.
  # The setting is particularly useful for tweaking memory settings.
  # Default value: -Xmx1024m -XX:MaxPermSize=256m
  # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
  #
  # When configured, Gradle will run in incubating parallel mode.
  # This option should only be used with decoupled projects. For more details, visit
  # https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
  # org.gradle.parallel=true
  #Wed Nov 13 16:13:01 CST 2024
  # systemProp.http.proxyHost=
  # systemProp.http.proxyPort=8080
  # systemProp.https.proxyHost=android-mirror.bugly.qq.com
  # systemProp.https.proxyPort=8080
  

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  保存后，重启 Android Studio 打开项目即可，现在开发几乎不用考虑去配置代理，初学者会在教程中看到很多教配置代理的场景，不用配，配了反而进了无底洞搞不清前后了。