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*OFF-TOPIC*

Anyone has an experience with `yml or yaml` files?

I have below block in my config.yml however it throws below error:

`mapping values are not allowed here in "&lt;unicode string&gt;", line 95, column 18: filters:`

```
workflows:
  version: 2

  build_and_test:
    jobs:
      - build_and_setup
          filters:
            branches:
              only: master
```

I use `CircleCI` and in the official documentation, it shows the same usage.

<https://circleci.com/docs/2.0/configuration-reference/#full-example>

I think you’re missing a `:` after `build_and_setup`?

<https://yaml-online-parser.appspot.com/> nicely maps yaml to json btw, might be helpful to spot issues like wrong indentation

Ohh, yaml is such a mess...
You need a parser from "human readable" format to mostly machine readable to spot a bug

<@U579VR96E> ahh what a silly me :smile:, thanks bro you saved my day! It’s the reason I forgot `:`

I advice to use this tool for CircleCI config: <https://circleci.com/docs/2.0/local-cli/#validate-a-circleci-config>

Thanks <@U58GRE73J>! I just installed yamllint and it validates any kind of yml files.

tool above also validate correctness of your `config.yml` from configuration perspective

Thanks I will give it a try, BTW are you experienced in CircleCI workflows, especially branches?