Error when using nuxt-i18n dep in Nuxt

[girardinsamuel]

Hi !

I am testing a Nuxt static generated app on Vercel. This app uses nuxt-i18n which is using vue-i18n-extensions

After dependencies installation, when vercel run npm run generate I get the following error :

17:15:43.695 | > my_repo@1.0.0 generate /vercel/61f2f93f
-- | --
17:15:43.695 | > nuxt generate
17:15:44.407 | FATAL  Error parsing /vercel/61f2f93f/node_modules/vue-i18n-extensions/package.json: Unexpected token , in JSON at position 3089
17:15:44.407 | SyntaxError: Error parsing node_modules/vue-i18n-extensions/package.json: Unexpected token , in JSON at position 3089
17:15:44.407 | at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
17:15:44.418 | ╭──────────────────────────────────────────────────────────────────────────────────────╮
17:15:44.418 | │                                                                                      │
17:15:44.418 | │   ✖ Nuxt Fatal Error                                                                 │
17:15:44.418 | │                                                                                      │
17:15:44.418 | │   SyntaxError: Error parsing                                                         │
17:15:44.418 | │   /vercel/61f2f93f/node_modules/vue-i18n-extensions/package.json: Unexpected token   │
17:15:44.418 | │   , in JSON at position 3089                                                         │
17:15:44.418 | │                                                                                      │
17:15:44.418 | ╰──────────────────────────────────────────────────────────────────────────────────────╯
17:15:44.432 | npm ERR! code ELIFECYCLE
17:15:44.432 | npm ERR! errno 1
17:15:44.433 | npm ERR! my_repo@1.0.0 generate: `nuxt generate`
17:15:44.433 | npm ERR! Exit status 1
17:15:44.433 | npm ERR!
17:15:44.433 | npm ERR! Failed at the my_repo@1.0.0 generate script.
17:15:44.433 | npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
17:15:44.440 | npm ERR! A complete log of this run can be found in:
17:15:44.440 | npm ERR!     /vercel/.npm/_logs/2020-09-04T15_15_44_434Z-debug.log
17:15:44.445 | Error: Command "npm run generate" exited with 1
17:15:47.471 | Done with "package.json"

Here are an overview of my app dependencies :

"dependencies": {
  3     "@nuxtjs/axios": "^5.12.2",
  4     "@nuxtjs/google-tag-manager": "^2.3.2",
  5     "@nuxtjs/sitemap": "^1.2.0",
 18     "nuxt": "^2.14.4",
 19     "nuxt-i18n": "^4.1.0",
 41   },

It's working in local and in other environments. Do you have some clues about this issue ?
Do you think it's related to Node version ?

Thanks 👍 !

[girardinsamuel]

I have found out that it was working on Node 12.16 but not on the latest LTS Node version 12.18.3.
I can create a repository to reproduce the issue if you want.

Thank you