我执行sudo ykit pack -m，也有对node_modules执行chmod 777，但还是报错如下：
报错如下：
[Bundler] optimize assetsfs.js:114
throw err;
^
Error: EACCES: permission denied, open '/usr/local/mongodb/bin/my-yapi/vendors/node_modules/.happypack/cache--1.json'
at Object.openSync (fs.js:443:3)
at Object.writeFileSync (fs.js:1194:35)
at Object.HappyFSCache.exports.save (/usr/local/mongodb/bin/my-yapi/vendors/node_modules/ykit-config-react/node_modules/happypack/lib/HappyFSCache.js:87:8)
at HappyPlugin.stop (/usr/local/mongodb/bin/my-yapi/vendors/node_modules/ykit-config-react/node_modules/happypack/lib/HappyPlugin.js:230:16)
at Compiler.applyPlugins (/usr/local/lib/node_modules/ykit/node_modules/tapable/lib/Tapable.js:26:37)
at Compiler. (/usr/local/lib/node_modules/ykit/node_modules/webpack/lib/Compiler.js:193:12)
at Compiler.emitRecords (/usr/local/lib/node_modules/ykit/node_modules/webpack/lib/Compiler.js:282:37)
at Compiler. (/usr/local/lib/node_modules/ykit/node_modules/webpack/lib/Compiler.js:187:11)
at /usr/local/lib/node_modules/ykit/node_modules/webpack/lib/Compiler.js:275:11
at Compiler.next (/usr/local/lib/node_modules/ykit/node_modules/tapable/lib/Tapable.js:67:11)
at /usr/local/mongodb/bin/my-yapi/vendors/node_modules/assets-webpack-plugin/dist/index.js:156:9
at /usr/local/mongodb/bin/my-yapi/vendors/node_modules/assets-webpack-plugin/dist/lib/output/createQueuedWriter.js:16:7
at /usr/local/mongodb/bin/my-yapi/vendors/node_modules/assets-webpack-plugin/dist/lib/output/createOutputWriter.js:74:13
at /usr/local/lib/node_modules/ykit/node_modules/graceful-fs/graceful-fs.js:61:14
at FSReqWrap.args [as oncomplete] (fs.js:140:20)
shouldnotappearcalm
