npm install 报警告npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.0 (node_modules\fsevents
npmnoticecreatedalockfileaspackage-lock.json.Youshouldcommitthisfile.npmWARNfsevents@1.2.0hadbundledpackagesthatdonotmatchtherequiredversion(s).Theyhavebeenreplacedwithnon-bundledversions.npmWARNoptio