Help Building the Site locally

Hey, I’m interested in contributing to the website (thinking primarily about giving a go at developing the search bar), but I’m a Jekyll noob and I’m having trouble opening the site in localhost.
I installed ruby, installed all the gems (at least I believe I did), but when I run:

$ bundle exec jekyll serve
Configuration file: /home/ccastro/Projetos/
            Source: /home/ccastro/Projetos/
       Destination: /home/ccastro/Projetos/
 Incremental build: disabled. Enable with --incremental
A lot of:
YAML Exception reading /home/ccastro/Projetos/ (<unknown>): could not find expected ':' while scanning a simple key at line 6 column 1 
       Jekyll Feed: Generating feed for posts
A lot of :
Liquid Warning: Liquid syntax error (line 7): Unexpected character & in "post.layout == 'app' && post.published == 'true'" in /_layouts/category.html
 Auto-regeneration: enabled for '/home/ccastro/Projetos/'
    Server address:
  Server running... press ctrl-c to stop.

But when I try to acess the address given I can’t load the page (can’t load by accessing http://localhost:4000/ either). What am I doing wrong?

Any help would be appreciated.

Hi @Caiofcas, welcome and thanks for trying to help!

Unfortunately I don’t know. I’d assume you have other Jekyll/gem versions locally than we have on the server?