npm ERR! code ENOSELF npm ERR! Refusing to install package with name "echarts" under a package npm ERR! also called "echarts". Did you name your project the same npm ERR! as the dependency you're installing? npm ERR! npm ERR! For more information, see: npm ERR! <https://docs.npmjs.com/cli/install#limitations-of-npms-install-algorithm> npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\wuqilang\AppData\Roaming\npm-cache\_logs\2020-02-15T05_03_00_902Z-debug.log
原因：项目名称和插件名称相同，将项目名称改掉，同时将package.json中name值改掉。创建项目的时候，不要起用插件名当做项目名。