1. npm ERR! code EINTEGRITY npm ERR! sha1-
npm ERR! code EINTEGRITYnpm ERR! sha1-OGchPo3Xm/Ho8jAMDPwe+xgsDfE= integrity checksum failed when using sha1: wanted sha1-OGchPo3Xm/Ho8jAMDPwe+xgsDfE= but got sha1-gNVXCrjQagTW0VaF+kYHiU1O0Iw=. (33078 bytes)
解决办法，npm版本降级：
npm -g install npm@4
