Error building app while parsing language files

This happens in every language file

[14:31:11]  ERROR  end of the stream or a document separator is expected in "/home/ws/ah7636/Coding/HMC/Information Portal/frontend/lang/Components.yaml" (2:18)

 1 | const resource = {
 2 |   "home_via_path": {"type":0,"start":0,"end":17," ...
----------------------^
 3 |   "home_via_name": {"type":0,"start":0,"end":13," ...
 4 |   "home_lang_en_link": {"type":0,"start":0,"end": ...

Reproduce

Remove yarn.lock and/or package-lock.json and node_modules directory.
Reinstall the dependencies
run project with yarn dev or npm run dev