Mac端Flutter安装失败求助：提示‘flutter not found’及版本异常

Flutter (Channel unknown, 0.0.0-unknown, on macOS 13.2 22D49 darwin-x64, locale en-US)
! Flutter version 0.0.0-unknown on channel unknown at /Users/macbook/Development/flutter
当前处于未知通道，请执行flutter channel切换至官方通道。若无法解决，请按照https://flutter.dev/docs/get-started/install的指引重新安装Flutter。
无法解析当前版本，可能是由于本地修改导致，请按照上述链接指引重新安装Flutter。
! 警告：路径中的flutter指向/Users/macbook/development/flutter/bin/flutter，不在当前Flutter SDK目录/Users/macbook/Development/flutter内。建议将/Users/macbook/Development/flutter/bin添加至路径前端。
! 警告：路径中的dart指向/Users/macbook/development/flutter/bin/dart，不在当前Flutter SDK目录/Users/macbook/Development/flutter内。建议将/Users/macbook/Development/flutter/bin添加至路径前端。
! 未知上游仓库，请按照上述链接指引重新安装Flutter。

解决步骤 #

1. 修正环境变量路径 #

系统检测到flutter和dart命令指向的路径与当前SDK目录不匹配，需将正确路径优先加入环境变量：

• 打开终端，编辑shell配置文件（zsh用户用~/.zshrc，bash用户用~/.bash_profile）：

  open -e ~/.zshrc
  

• 添加以下配置（替换为你的Flutter SDK实际路径）：

  export PATH="/Users/macbook/Development/flutter/bin:$PATH"
  

• 保存文件后，刷新环境变量：

  source ~/.zshrc
  

• 验证路径是否生效：

  which flutter
  which dart
  

  确认输出为/Users/macbook/Development/flutter/bin/flutter和/Users/macbook/Development/flutter/bin/dart

2. 修复Flutter通道与仓库配置 #

当前Flutter处于未知通道且上游仓库无效，执行以下操作：

• 切换至官方稳定通道：

  flutter channel stable
  

• 更新Flutter SDK：

  flutter upgrade
  

• 若更新失败，手动重置仓库配置：

  cd /Users/macbook/Development/flutter
  git remote set-url origin https://github.com/flutter/flutter.git
  git fetch
  git checkout stable
  

3. 验证修复结果 #

执行命令检查Flutter状态：

flutter doctor

若问题仍存在，彻底重新安装Flutter：

• 删除现有Flutter目录：

  rm -rf /Users/macbook/Development/flutter
  

• 克隆官方稳定版本：

  git clone https://github.com/flutter/flutter.git -b stable /Users/macbook/Development/flutter
  

• 重新配置环境变量后执行flutter doctor

内容的提问来源于stack exchange，提问作者Gbenga Otunla