# Odd Dependency Error while jekyll serve
**URL:** https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74
**Category:** Help
**Created:** [February 6, 2017, 12:07am UTC](https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74 "2017-02-06T00:07:50Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@getchester](https://talk.jekyllrb.com/u/getchester)
#### Post date: [February 6, 2017, 12:07am UTC](https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74/1 "2017-02-06T00:07:50Z")
Getting weird error while trying to jekyll serve.
```
Dependency Error: Yikes! It looks like you don't have jemoji or one of
its dependencies installed. In order to use Jekyll as currently configured,
you'll need to install this gem. The full error message from Ruby is: 'Unable
to activate activesupport-4.2.7.1, because json-2.0.3 conflicts with
json (>= 1.7.7, ~> 1.7)' If you run into trouble, you can find helpful resources
at https://jekyllrb.com/help/!
```
I’ve uninstalled and reinstalled but can’t figure the problem out. I’ve done a gem update and the actual versions I have are below:
\*\*\* LOCAL GEMS \*\*\*
activesupport (5.0.1, 4.2.7.1)
addressable (2.5.0)
bigdecimal (default: 1.3.0)
bundle (0.0.1)
bundler (1.14.3)
colorator (1.1.0)
colored (1.2)
concurrent-ruby (1.0.4)
did\_you\_mean (1.1.0)
ethon (0.10.1)
ffi (1.9.17)
forwardable-extended (2.6.0)
gemoji (3.0.0)
html-pipeline (2.5.0)
html-proofer (3.4.0)
i18n (0.8.0)
io-console (default: 0.4.6)
jekyll (3.4.0)
jekyll-paginate (1.1.0)
jekyll-sass-converter (1.5.0)
jekyll-watch (1.5.0)
jemoji (0.8.0)
json (2.0.3, default: 2.0.2, 1.8.6)
kramdown (1.13.2)
liquid (4.0.0, 3.0.6)
listen (3.1.5, 3.0.8)
mercenary (0.3.6)
mini\_portile2 (2.1.0)
minitest (5.10.1)
net-telnet (0.1.1)
nokogiri (1.7.0.1)
openssl (2.0.3, default: 2.0.2)
parallel (1.10.0)
pathutil (0.14.0)
power\_assert (1.0.1)
psych (default: 2.2.2)
public\_suffix (2.0.5)
rake (12.0.0)
rb-fsevent (0.9.8)
rb-inotify (0.9.8)
rdoc (default: 5.0.0)
rouge (2.0.7, 1.11.1)
ruby\_dep (1.5.0)
safe\_yaml (1.0.4)
sass (3.4.23)
test-unit (3.2.3)
thread\_safe (0.3.5)
typhoeus (0.8.0)
tzinfo (1.2.2)
xmlrpc (0.2.1)
yell (2.0.7)
---
### Author:  [@rdyar](https://talk.jekyllrb.com/u/rdyar)
#### Post date: [February 10, 2017, 4:42pm UTC](https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74/2 "2017-02-10T16:42:03Z")
I’m no expert at this, but it looks like it is telling you that your version of json 2.03 is not compatible with what something else wants - json 1.7.x.
I think I would try to install json 1.7.7 and maybe uninstall the other one?
---
### Author:  [@ashmaroli](https://talk.jekyllrb.com/u/ashmaroli)
#### Post date: [February 16, 2017, 11:39am UTC](https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74/3 "2017-02-16T11:39:16Z")
Add the following to your Gemfile
```auto
group :jekyll_plugins do
gem "jemoji", "~> 0.8"
end
```
and run
```auto
bundle exec jekyll serve
```
A
---
### Author:  [@getchester](https://talk.jekyllrb.com/u/getchester)
#### Post date: [February 17, 2017, 6:16pm UTC](https://talk.jekyllrb.com/t/odd-dependency-error-while-jekyll-serve/74/4 "2017-02-17T18:16:18Z")
I tried. When I go to fetch the gem, I get several hundred errors during the build.
```
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
/Users/getChester/.rbenv/versions/2.4.0/include/ruby-2.4.0/ruby/ruby.h:2158:12: note: expanded from macro 'rb_scan_args_count_end'
((vari)/(!fmt[ofs] || rb_scan_args_bad_format(fmt)))
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
67 warnings and 3 errors generated.
make: *** [generator.o] Error 1
```