npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! vue-music@1.0.0 dev: `node build/dev-server.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the vue-music@1.0.0 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! D:nodejsnode_cache_logs2019-08-13T08_44_02_656Z-debug.log
报错原因是：服务端口被占用，需要修改端口
