npm 报错

npm WARN old lockfile npm WARN old lockfile The package-lock.json file was created with an old version of npm, npm WARN old lockfile so supplemental metadata must be fetched from the registry. npm WARN old lockfile npm WARN old lockfile This is a one-time fix-up, please be patient... npm WARN old lockfile npm ERR! code E404 npm ERR! 404 Not Found - GET https://registry.npmmirror.com/html-webpacks-plugin - [NOT_FOUND] html-webpacks-plugin not found npm ERR! 404 npm ERR! 404 'html-webpacks-plugin@^5.5.0' is not in this registry. npm ERR! 404 You should bug the author to publish it (or use the name yourself!) npm ERR! 404 npm ERR! 404 Note that you can also install from a npm ERR! 404 tarball, folder, http url, or git url. npm ERR! A complete log of this run can be found in: npm ERR! 

使用命令

npm install--save-dev html-webpack-plugin