gulpでエラーが出たので対応した．

# gulpでエラーが出たので対応した．

$ gulp
module.js:474
throw err;
^

Error: Cannot find module 'internal/fs'
at Function.Module._resolveFilename (module.js:472:15)
at Function.Module._load (module.js:420:25)
at Module.require (module.js:500:17)
at require (internal/module.js:20:19)
at evalmachine.:17:20
at Object. (/PATH/TO/graceful-fs/fs.js:11:1)
at Module._compile (module.js:573:32)
at Object.Module._extensions..js (module.js:582:10)
at Module.load (module.js:490:32)
at tryModuleLoad (module.js:450:

$ rm -rf node_modules
$ npm i