centos7集成WEB IM完整版在执行'npm i'的时候出错了

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"ia32"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! phantomjs-prebuilt@2.1.14 install: `node install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the phantomjs-prebuilt@2.1.14 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/wudaji/.npm/_logs/2018-09-03T08_22_34_082Z-debug.log