I am using react-boilerplate when I do run *npm install* I see these errors 

```js
    Building the Webpack DLL...
Hash: 7f68501fbcd6b8f05530
Version: webpack 4.12.0
Time: 3566ms
Built at: 08/05/2018 6:10:17 PM
                      Asset      Size                Chunks                    Chunk Names
reactBoilerplateDeps.dll.js  4.81 MiB  reactBoilerplateDeps  [emitted]  [big]  reactBoilerplateDeps
chunk {reactBoilerplateDeps} reactBoilerplateDeps.dll.js (reactBoilerplateDeps) 4.15 MiB [entry] [rendered]

WARNING in ./node_modules/xlsx-style/ods.js
Module not found: Error: Can't resolve '../xlsx' in '/Users/mehrnooshhajkhalil/react-boilerplate/node_modules/xlsx-style'
 @ ./node_modules/xlsx-style/ods.js
 @ ./node_modules/xlsx-style/xlsx.js
 @ ./node_modules/node-excel-export/lib/excel.js
 @ ./node_modules/node-excel-export/index.js
 @ dll reactBoilerplateDeps

ERROR in ./node_modules/xlsx-style/dist/cpexcel.js
Module not found: Error: Can't resolve './cptable' in '/Users/mehrnooshhajkhalil/react-boilerplate/node_modules/xlsx-style/dist'
 @ ./node_modules/xlsx-style/dist/cpexcel.js 807:16-41
 @ ./node_modules/xlsx-style/xlsx.js
 @ ./node_modules/node-excel-export/lib/excel.js
 @ ./node_modules/node-excel-export/index.js
 @ dll reactBoilerplateDeps

ERROR in ./node_modules/xlsx-style/xlsx.js
Module not found: Error: Can't resolve 'fs' in '/Users/mehrnooshhajkhalil/react-boilerplate/node_modules/xlsx-style'
 @ ./node_modules/xlsx-style/xlsx.js 1204:27-40 1340:8-24
 @ ./node_modules/node-excel-export/lib/excel.js
 @ ./node_modules/node-excel-export/index.js
 @ dll reactBoilerplateDeps

ERROR in ./node_modules/xlsx-style/ods.js
Module not found: Error: Can't resolve 'fs' in '/Users/mehrnooshhajkhalil/react-boilerplate/node_modules/xlsx-style'
 @ ./node_modules/xlsx-style/ods.js 58:8-24
 @ ./node_modules/xlsx-style/xlsx.js
 @ ./node_modules/node-excel-export/lib/excel.js
 @ ./node_modules/node-excel-export/index.js
 @ dll reactBoilerplateDeps

ERROR in ./node_modules/xlsx-style/ods.js
Module not found: Error: Can't resolve 'xlsx' in '/Users/mehrnooshhajkhalil/react-boilerplate/node_modules/xlsx-style'
 @ ./node_modules/xlsx-style/ods.js 13:21-41
 @ ./node_modules/xlsx-style/xlsx.js
 @ ./node_modules/node-excel-export/lib/excel.js
 @ ./node_modules/node-excel-export/index.js
 @ dll reactBoilerplateDeps
removed 1 package and audited 53190 packages in 30.134s
```

I did also try 

rm -rf node-modules 
npm clean cache --force
npm install 

But none of them did not solve my problem 

Node version : v10.8.0
npm version : 6.2.0