# Problem in using jekyll 4.0.0

**URL:** <https://talk.jekyllrb.com/t/problem-in-using-jekyll-4-0-0/4189>\
**Category:** Help\
**Created:** [April 4, 2020, 1:40pm UTC](https://talk.jekyllrb.com/t/problem-in-using-jekyll-4-0-0/4189 "2020-04-04T13:40:45Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![universephile](https://avatars.discourse-cdn.com/v4/letter/u/ce7236/32.png) [@universephile](https://talk.jekyllrb.com/u/universephile)\
**Post date:** [April 4, 2020, 1:40pm UTC](https://talk.jekyllrb.com/t/problem-in-using-jekyll-4-0-0/4189/1 "2020-04-04T13:40:45Z")

</div>

When I run `jekyll new test_site`  
This error appears in terminal

```auto
jekyll 4.0.0 | Error: undefined method `cyan' for "/home/astrophile/web development/test_website":String

```

Please suggest a way to fix it.

---

<div class="post-metadata">

**Author:** ![rdyar](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/rdyar/32/710_2.png) [@rdyar](https://talk.jekyllrb.com/u/rdyar)\
**Post date:** [April 4, 2020, 5:42pm UTC](https://talk.jekyllrb.com/t/problem-in-using-jekyll-4-0-0/4189/2 "2020-04-04T17:42:57Z")

</div>

is that all you get in the terminal?

cyan and red (other post) are colors, I’m guessing there is a problem with sass compiling a css color.

if you do `gem install jekyll` what do you get? any errors? there is a sass gem, my guess it is not installed. Not sure what it is called exactly though.

---

<div class="post-metadata">

**Author:** ![ashmaroli](https://avatars.discourse-cdn.com/v4/letter/a/df705f/32.png) [@ashmaroli](https://talk.jekyllrb.com/u/ashmaroli)\
**Post date:** [April 5, 2020, 9:15am UTC](https://talk.jekyllrb.com/t/problem-in-using-jekyll-4-0-0/4189/3 "2020-04-05T09:15:14Z")

</div>

`cyan` is a method for Ruby strings via the `colorator` gem (which gets installed automatically when Jekyll is installed).  
Looks like Jekyll wasn’t able to load that gem. Run the following (in order) in your terminal:

- `gem install colorator`
- `ruby -r 'colorator' -e "puts 'Colored string'.cyan"`

If you see a light-blue colored output, you should be set.  
Then try running the `jekyll new ...` command again.