module.js:471 throw err; ^ Error: Cannot find module 'quertstring'
module.js:471 throw err; ^ Error: Cannot find module 'quertstring' at Function.Module._resolveFilename (module.js:469:15) at Function.Module._load (module.js:417:25) at Module.require (module.js:497:17) at Object.Module._extensions..js (module.js:579:10) 。。。 怎么解决?