[3020] Dependency not found (although installed)

This is how my vee-validate.js (in plugins folder) looks:

import Vue from 'vue'
import VeeValidate from 'vee-validate'

Vue.use(VeeValidate)

nuxt.config.js contains the following:

plugins: ['~/plugins/vee-validate.js'],

I don't need to mention that I executed the following:

npm install vee-validate --save

However, this is the error I get when I try to execute npm run dev:

This dependency was not found:

* nuxt_plugin_veevalidate_1a0c1998 in ./.nuxt/index.js

It's strange this doesn't work on server, but on local does. I tried to reinstall the server, install nuxt and other plugins manually as well, and many many other possible solutions.

Thanks!