saltUI运行失败,这是什么情况，换了台电脑就搞不好了，抓狂

Error: Cannot find module 'watchpack'

at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/Users/liushiwei/.nowa/install/._webpack@1.13.3@webpack/lib/node/NodeWatchFileSystem.js:5:17)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)