vue-cli 中webpack 中添加plugins报错

Question

Users/yang/Desktop/Web/vue2/vue-admin/node_modules/webpack/lib/webpack.js:19

    throw new WebpackOptionsValidationError(webpackOptionsValidationErrors);
    ^

WebpackOptionsValidationError: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.

• configuration.module has an unknown property 'plugins'. These properties are valid:
  object { exprContextCritical?, exprContextRecursive?, exprContextRegExp?, exprContextRequest?, loaders?, noParse?, rules?, unknownContextCritical?, unknownContextRecursive?, unknownContextRegExp?, unknownContextRequest?, unsafeCache?, wrappedContextCritical?, wrappedContextRecursive?, wrappedContextRegExp?, strictExportPresence? }

Options affecting the normal modules (NormalModuleFactory).

at webpack (/Users/yang/Desktop/Web/vue2/vue-admin/node_modules/webpack/lib/webpack.js:19:9)

0 info it worked if it ends with ok

at Object.<anonymous> (/Users/yang/Desktop/Web/vue2/vue-admin/build/dev-server.js:24:16)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.runMain (module.js:605:10)
at run (bootstrap_node.js:423:7)
at startup (bootstrap_node.js:147:9)
at bootstrap_node.js:538:3