events.js:183 throw er; // Unhandled 'error' event ^

events.js:183
      throw er; // Unhandled 'error' event
      ^

。。。

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `gulp`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start 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!     E:\node.js\node_cache\_logs\2018-08-01T07_50_47_824Z-debug.log

Process finished with exit code 1

 解决办法：Javascript文件中的某个函数很可能缺少了括号，回去看去。