Cannot read property 'properties' of undefined 小程序组件打包，不支持？

[LWD8]

e:\其他\mpx-webpack-plugin-master>npm run build

mpx-webpack-plugin@1.0.10 build e:\其他\mpx-webpack-plugin-master
webpack --config=./examples/webpack.config.js

e:\其他\mpx-webpack-plugin-master\node_modules_webpack-cli@2.1.5@webpack-cli\bin\config-yargs.js:89
describe: optionsSchema.definitions.output.properties.path.description,
^

TypeError: Cannot read property 'properties' of undefined
at module.exports (e:\其他\mpx-webpack-plugin-master\node_modules_webpack-cli@2.1.5@webpack-cli\bin\config-yargs.js:89:48)
at e:\其他\mpx-webpack-plugin-master\node_modules_webpack-cli@2.1.5@webpack-cli\bin\webpack.js:60:27
at Object. (e:\其他\mpx-webpack-plugin-master\node_modules_webpack-cli@2.1.5@webpack-cli\bin\webpack.js:515:3)
at Module._compile (internal/modules/cjs/loader.js:688:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
at Module.load (internal/modules/cjs/loader.js:598:32)
at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
at Function.Module._load (internal/modules/cjs/loader.js:529:3)
at Module.require (internal/modules/cjs/loader.js:636:17)
at require (internal/modules/cjs/helpers.js:20:18)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! mpx-webpack-plugin@1.0.10 build: webpack --config=./examples/webpack.config.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the mpx-webpack-plugin@1.0.10 build 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\Administrator\AppData\Roaming\npm-cache_logs\2019-02-27T10_36_45_386Z-debug.log