-------终端输出错误,及解决办法----------
1、apple@XXX ~ % source ~/.bash_profile
/Users/apple/.bash_profile:5: bad assignment
原因: .bash_proflie 文件中不能有空格
2、apple@XXX Downloads ~ % flutter doctor
zsh: command not found: flutter
原因: 目录不正常,应该在根目录执行
3、查看flutter插件是否安装成功
apple@XXX ~ % flutter doctor
zsh: command not found: flutter
原因: 可能是.bash_profile保存失败,导致查询不到flutter插件
4、检查 flutter 插件是否存在
apple@XXX ~ % flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.17.5, on Mac OS X 10.15.4 19E287, locale
zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
! Some Android licenses not accepted. To resolve this, run: flutter doctor
--android-licenses
原因: Android 需要更新 在根文件目录执行:flutter doctor --android-licenses 一路输入 y 即可
apple@XXX ~ % flutter doctor --android-licenses
Accept? (y/N): y
All SDK package licenses accepted
[!] Xcode - develop for iOS and macOS
✗ Xcode installation is incomplete; a full installation is necessary for iOS
development.
Download at: https://developer.apple.com/xcode/download/
Or install Xcode via the App Store.
Once installed, run:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch
解决办法: 在文件根目录执行 两句 命令:
1、sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
apple@XXX ~ % sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
Password:(输入电脑解锁密码)
2、sudo xcodebuild -runFirstLaunch
apple@XXX ~ % sudo xcodebuild -runFirstLaunch
[✓] Android Studio (version 3.3)
[!] Connected device
! No devices available
原因: 找不到可运行的设备 ,
解决办法: 1、手机连接电脑
2、打开模拟器simulator
3、运行android模拟器
! Doctor found issues in 3 categories.
原因: 插件有问题,安装提示一一解决即可
5、新建项目运行:1)flutter packages 2)get flutter pub get
如果长时间Waiting for another flutter command to release the startup lock...
解决方法一、
1、关闭Android Studio或VSCode
2、打开flutter安装目录/bin/cache
3、删除lockfile文件
4、在终端再执行flutter相关命令.一般就可以解决
方法二、
查看镜像是否可以打开,如果有镜像打开404 则切换镜像
flutter社区经营的镜像站点地址: https://flutter.dev/community/china
1、执行替换镜像命令:
export PUB_HOSTED_URL=https://dart-pub.mirrors.sjtug.sjtu.edu.cn/
export FLUTTER_STORAGE_BASE_URL=https://mirrors.sjtug.sjtu.edu.cn/
2、重新加载.bash文件(!!!重新绑定镜像后一定要执行这句)
source ~/.bash_profile
