code ELIFECYCLE
> Node.js X64 10.4.0
> Npm 6.1.0

运行
> npm run dev

结果如下:
```
> koa2-API-scaffold@1.0.0 dev D:\00.Projects\api_koa2
> gulp

gulp[18288]: src\node_contextify.cc:629: Assertion `args[1]->IsString()' failed.
 1: node::DecodeWrite
 2: node::DecodeWrite
 3: uv_loop_fork
 4: v8::internal::FeedbackVector::New
 5: v8::internal::FeedbackVector::New
 6: v8::internal::FeedbackVector::New
 7: v8::internal::FeedbackVector::New
 8: 000002A92C2841C1
npm ERR! code ELIFECYCLE
npm ERR! errno 134
npm ERR! koa2-API-scaffold@1.0.0 dev: `gulp`
npm ERR! Exit status 134
npm ERR!
npm ERR! Failed at the koa2-API-scaffold@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:\Dev\npm-cache\_logs\2018-07-21T09_56_01_127Z-debug.log
```