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>\)

如果在你的系统上，Yarn是由Node.js通过corepack提供的，那么，你可以选择你想要使用的Yarn版本，如下所述:

Corepack准备yarn@x.y.z—激活

- https://nodejs.org/api/corpac.html #升级全球版本

如果你安装了brew，尝试在终端提示下卸载yarn。还记得在.bash_profile中删除纱线路径信息。

我这边做了什么:

转到/usr/local/lib/node_modules目录，删除其中的yarn文件夹。

在我的Mac上，这两种常规方法都不能卸载Yarn:

酿造:酿造卸载纱线

Npm: Npm卸载-g yarn

相反，我手动删除它输入rm -rf ~/。Yarn(感谢用户elthrasher)并删除usr/local/bin中的Yarn和yarnpkg两个符号。 之后酝酿安装yarn给了我最新版本的yarn。

背景:事实上，我安装了一个非常过时的Yarn版本，当我试图安装额外的模块到一个用Vue CLI Service和Vue UI设置的项目时，我犯了完全无法理解的错误，而Vue CLI Service和Vue UI显然在“底层”使用了Yarn。我通常使用NPM，所以我花了一段时间来找出我的问题的原因。当然，谷歌这种模块不兼容所产生的错误消息并没有提供任何线索。随着Yarn的更新，现在一切都很完美。

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>\)