INFO  Starting development server...
 ERROR  WebpackOptionsValidationError: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration.name should be a string.
WebpackOptionsValidationError: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration.name should be a string.
   -> Name of the configuration. Used when loading multiple configurations.
    at webpack (E:\qdyh\trunk\qdyh-web\node_modules\webpack\lib\webpack.js:31:9)
    at serve (E:\qdyh\trunk\qdyh-web\node_modules\@vue\cli-service\lib\commands\serve.js:135:22)
    at Function.Module.runMain (internal/modules/cjs/loader.js:834:11)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! vue-admin-template@4.2.1 dev: `vue-cli-service serve`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the vue-admin-template@4.2.1 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\hyx\AppData\Roaming\npm-cache\_logs\2020-04-28T08_05_55_780Z-debug.log
PS E:\qdyh\trunk\qdyh-web> npm i
npm WARN vue-admin-template@4.2.1 No repository field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.12 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.12: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

如果你的项目什么也没有改动，启动时突然报以上错误，那有可能是环境出现了某些问题，这时候可以删除node_modules，重新装，这时解决npm WARN vue-admin-template@4.2.1 No repository field.这个警告，解决方案在https://blog.csdn.net/makelucky/article/details/105816416  即可