Webpack build error

[iabok]

Each time i run a production build, the build fails on Vue-cache module with this error.
UglifyJs Unexpected token: operator (>) [./node_modules/vuex-cache/index.module.js:1,0][app.js:43610,17]

[VitorLuizC]

module bundle uses es2015 syntax. You can bundle it down before minify or use something like babel-minify instead

[VitorLuizC]

You can also target index.umd.js module, which is bundled as ES5

[iabok]

Thank you.

[superwf]

thanks @VitorLuizC