install using the following command, but the version of vue-V is always 2.9.6
npm install -g @vue/cli
-sharp OR
yarn global add @vue/cli$ node -v
v8.12.0
$ vue -V
2.9.6 tried node reinstallation, invalid
npm yarn global installation is invalid, all are the latest version
npm uninstall -g vue-cli
npm install -g @vue/cliyarn global remove vue-cli
yarn global add @vue/cli uninstall the original and then reinstall it. ide/installation.html" rel=" nofollow noreferrer "> about Vue CLI 3
the package name of the old version
Vue CLI has been changed from vue-cli to @ vue/cli. If you have installed the old version of vue-cli (1.x or 2.x) globally, you need to uninstall it through npm uninstall vue-cli-g or yarn global remove vue-cli first.
Node version requires
Vue CLI requires Node.js 8.9 or later (8.11.0 + recommended). You can use nvm or nvm-windows to manage multiple Node versions on the same computer.
probably not. Vue-cli3 and 2 are two completely different versions, not to mention upgrading cli. Unless you reinstall the cli, configuration plugin
I also encounter this problem, is the path problem, has been solved, you can learn from this. https://juejin.im/post/5bf7d6.,
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