Windows:

我需要做这些步骤，以完全去除纱线从系统。

Go to add or remove programs and then search for yarn and uninstall it(if you installed it with the .msi) npm uninstall -g yarn (if you installed with npm) Remove any existing yarn folders from your Program Files (x86) (Program Files (x86)\Yarn). Also need to delete your Appdata\local\yarn folder ( type %LOCALAPPDATA% in the run dialog box (win+R), it opens a local folder and there you'll find the yarn folder to delete) Finally,check your user directory and remove all .yarn folder, .yarn.lock file, .yarnrc etc ( from C:\Users\<user>\)

如果在删除~/后仍然得到错误。Yarn文件找不到，不要忘记删除Yarn rc文件:

rm ~/.yarnrc.yml 

取决于你如何安装它:

酿造:酿造卸载纱线

tarball: rm -rf "$HOME/.yarn"

Npm: Npm卸载-g yarn

Ubuntu: sudo apt-get remove yarn && sudo apt-get purge yarn

拆纱:拆纱

Windows: choco卸载yarn(或去控制面板>添加/删除程序，并从那里卸载它)

如果你是用npm安装的，试试"npm uninstall -g yarnpkg"(global)或者"npm uninstall yarnpkg"(local)。 这对我来说很有效。 如果仍然不工作，你安装了npm，执行"npm list -g"检查是否全局安装，或"npm list"检查是否本地安装。希望这对有这个问题的人有所帮助。: D

编辑:发现一些东西，如果你安装yarn .msi可执行文件，你必须安装正常的windows方式。

删除线

# macOS & brew
$ brew uninstall yarn

移除NPM包

# yarn global remove
$ sudo yarn global remove @tarojs/cli


# yarn global add 
$ sudo yarn global add @tarojs/cli

参考文献:

https://classic.yarnpkg.com/en/docs/cli/global/

https://classic.yarnpkg.com/en/docs/cli/remove/

如果你正在使用corepack，并且之前运行了corepack enable命令，那么你可以通过以下命令卸载yarn:

corepack disable yarn