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Record node.js/vue/yarn installation Linuxnode.js NPM ා Download wget https://nodejs.org/dist/v14.15.3/node-v14.15.3-linux-x64.tar.xz #Decompress tar xf node-v14.15.3-linux-x64.tar.xz #Enter the directory cd node-v14.15.3-linux-x64 #Establish soft connection and take effect globally ln -s /root/node-v14.15.3-linux-x64/bin/npm /usr/local/bin/npm ln -s /root/node-v14.15.3-linux-x64/bin/node /usr/local/bin/node Node - V ා version query NPM - V ා version query Which NPM ා where is NPM NPM NPM installation directory creates a soft link, and the environment variable VIM / etc / profile can be added to the bottom export path = $path / root / node-v14.15.3-linux-x64/bin to refresh the configuration and take effect immediately source / etc / profilearn ා npm install -g yarn #Create soft link. Global effect ln -s /root/node-v14.15.3-linux-x64/bin/yarn /usr/local/bin/ #Version query yarn -v #Installation position Choose between NPM and yarn npm install -g pm2 yarn global add pm2 ##If you do not know where the installation location is, you can see the installation process #Create soft link. Global effect ln -s /root/node-v14.15.3-linux-x64/bin/pm2 /usr/local/bin/ #Version query pm2 -v #Installation position which pm2 # whereis pm2 #Start the process pm2 start server.js #View progress Download and install PM2 listwindowsnode.js from the official website, Note that this will also install compatibility. The script will pop-up in a new window after the installation completes External command... To see if the system variable is added, the system variable will be automatically added. Path: my computer - properties - advanced system settings - environment variables - system variables - pathvue scaffold official website: Vue cli global installation Vue CIL, that is, the so-called scaffold, if node.js has been installed, NPM install - G @ Vue / cli has been installed # or Yarn global add @ Vue / cli problem 1 such as executing the command: always stop in fetchmetadata: will resolvewithnewmodule... View node source: NPM config get registry switch Taobao's source NPM config set registry https://registry.npm.taobao.org Problem 2 installation error NPM warn degraded vue-cli@2.9.6 : This package has been deprecated in favour of @vue/cli npm WARN deprecated request@2.88.2 : request has been..... ... or other errors. Try to clear the cache. Uninstall. Re install to clear the cache npm cache clean --force Uninstall old version npm uninstall -g @vue/cli # or Yarn global remove Vue cli upgrade NPM update - G @ Vue / cli # or Yarn global Upgrade -- Latest @ Vue / cli view version Vue - V # or Vue -- version successfully installed. Is' Vue 'not an internal or external command? Configure the system variable C: \ * * * \ node_ Before downloading and installing from the global / yarn official website, you need to install node.js first. Just click next to complete the installation. After the installation is completed, run NPM install - G yarn in the CMD window to verify whether the installation is successful. Re enter the CMD to view the yarn - V version
