Unexpected token: punc (,) in production environment.

[odhikari]

The error only occurs when running my project in a production environment . In development, the project run fine with "npm run watch" but when I execute "npm run production" this shows an error.
error:

/js/app.b9c2cce714d3903ccdc9.js from UglifyJs
Unexpected token: punc (,) [./~/vue-wordcloud/dist/word-cloud.js:1,83171][/js/app.b9c2cce714d3903ccdc9.js:37517,83160]

Please help me out.

[lcx94]

same question with you
how did you solve this problem?

[j-gav]

I am having the same issue, did either of you solve?