D:\project\wafer2-startup\server>npm install
npm WARN koa-weapp-demo@1.0.0 No repository field.


npm ERR! code EINTEGRITY
npm ERR! sha1-LR3DfuWWiGfs6pC22k0W5oYI0h0= integrity checksum failed when using
sha1: wanted sha1-LR3DfuWWiGfs6pC22k0W5oYI0h0= but got sha1-aKY8Ezjjp5Oe4Xu/OF14
DTwmJeg=. (29656 bytes)


npm ERR! A complete log of this run can be found in:
npm ERR! D:\Program Files\nodejs\node_cache\_logs\2017-09-22T07_15_30_609Z-d
ebug.log