Create Vue cli project and report error command failed: Yarn

Solution 1:

Enter C:/users/administrator/in the windows environment

There is a file . Vuerc

Open this file to display

{
“useTaobaoRegistry”: true,
“packageManager”: “yarn”
}

Just manually change the configuration content yarn to NPM to change the package manager when the project is created

Solution 2:

Delete the. Vuerc file. When you create a Vue project for the first time, you will be prompted to select the configuration, and then select NPM.

Solution 3: enter CMD in Win + R to enter the command line interface

Enter command

npm install -g yarn

After success, the problem can be solved by re creating vue-cli4 project.