Flutter初学者求助：flutter doctor检测异常问题（Android Studio未安装提示、IntelliJ Java执行失败、Visual Studio缺失）的解决方法

First, let's recap your current setup to make sure we're on the same page:

Flutter 2.2.3 • channel stable • https://github.com/flutter/flutter.git
Framework • revision f4abaa0735 (2 months ago) • 2021-07-01 12:46:11 -0700
Engine • revision 241c87ad80
Tools • Dart 2.13.4

Let's tackle each problem step by step:

1. Flutter Doctor says Android Studio isn't installed, but you have it #

This usually happens because Flutter can't auto-detect where Android Studio is installed. Here's how to fix it:

• Open Android Studio, go to File > Settings > Languages & Frameworks > Flutter (for Windows/Linux) or Android Studio > Settings > Languages & Frameworks > Flutter (for Mac)
• Double-check that your Flutter SDK path is correct, and confirm the Android SDK path points to the right directory (usually something like C:\Users\YourName\AppData\Local\Android\Sdk)
• If that doesn't work, set an environment variable manually:
  1. Find your Android Studio root folder (e.g., C:\Program Files\Android\Android Studio)
  2. Add a new system environment variable called ANDROID_STUDIO with that folder path as the value
  3. Restart PowerShell and run flutter doctor again to check

2. Failed to execute IntelliJ IDEA's Java binary #

The error points to C:\Users\lenovo\IntelliJ IDEA Community Edition 2021.1\bin\java—chances are the actual Java path in your IntelliJ install is different (newer IntelliJ versions use a bundled JBR in the jbr folder). Try these steps:

• First, verify the correct Java path in your IntelliJ folder: navigate to C:\Users\lenovo\IntelliJ IDEA Community Edition 2021.1\jbr\bin and check if java.exe exists there
• Tell Flutter where to find it by running these commands in PowerShell:

  # Point Flutter to your IntelliJ installation
  flutter config --android-studio-dir "C:\Users\lenovo\IntelliJ IDEA Community Edition 2021.1"
  # Or directly specify the JDK folder
  flutter config --jdk-dir "C:\Users\lenovo\IntelliJ IDEA Community Edition 2021.1\jbr"
  

• Restart PowerShell and run flutter doctor to see if the error clears up

3. Missing Visual Studio for Windows development #

If you plan to build Flutter apps for Windows, you'll need to install Visual Studio properly:

• Grab the full Visual Studio installer (not the lightweight version)
• When installing, make sure to select the Desktop development with C++ workload—and don't skip any of its default components (they're required for Flutter Windows builds)
• Once installation finishes, restart your computer and run flutter doctor again; this issue should be resolved
• Note: If you don't need to develop for Windows right now, you can safely ignore this error—it won't affect your Android or Web development work

内容的提问来源于stack exchange，提问作者Aysha Thasneem AM