# Jekyll 3.4.3 | Error: undefined method \`error\_mode=' for Liquid::Template:Class

**URL:** <https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501>\
**Category:** Help\
**Created:** [April 30, 2017, 10:20pm UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501 "2017-04-30T22:20:32Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![robertmuehsig](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/robertmuehsig/32/198_2.png) [@robertmuehsig](https://talk.jekyllrb.com/u/robertmuehsig)\
**Post date:** [April 30, 2017, 10:20pm UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/1 "2017-04-30T22:20:33Z")

</div>

I’m having some trouble to get Jekyll (or Liquid?) running on my Windows box using the Ubuntu Bash WSL-Stuff.

I followed this blogpost [http://daverupert.com/2016/04/jekyll-on-windows-with-bash/](http://daverupert.com/2016/04/jekyll-on-windows-with-bash/)

Unfortunatly it fails with one warning and one error:

robert@XMG-ROBERT:/mnt/d/Temp/my-awesome-site2$ sudo jekyll build  
/usr/lib/ruby/vendor\_ruby/liquid/htmltags.rb:43: warning: key “index0” is duplicated and overwritten on line 46  
Configuration file: /mnt/d/Temp/my-awesome-site2/\_config.yml  
jekyll 3.4.3 | Error: undefined method `error\_mode=’ for Liquid::Template:Class

This is my gem list:

robert@XMG-ROBERT:/mnt/d/Temp/my-awesome-site2$ gem list

\*\*\* LOCAL GEMS \*\*\*

addressable (2.5.1)  
bigdecimal (1.2.8)  
bundle (0.0.1)  
bundler (1.14.6)  
colorator (1.1.0)  
ffi (1.9.18)  
forwardable-extended (2.6.0)  
iconv (1.0.4)  
io-console (0.4.5)  
jekyll (3.4.3)  
jekyll-feed (0.9.2)  
jekyll-sass-converter (1.5.0)  
jekyll-watch (1.5.0)  
json (1.8.3)  
kramdown (1.13.2)  
liquid (3.0.6)  
listen (3.0.8)  
mercenary (0.3.6)  
minima (2.1.1)  
pathutil (0.14.0)  
psych (2.1.0)  
public\_suffix (2.0.5)  
rb-fsevent (0.9.8)  
rb-inotify (0.9.8)  
rdoc (4.2.1)  
rouge (1.11.1)  
safe\_yaml (1.0.4)  
sass (3.4.23)

and the gem.lock file

GEM  
remote: [https://rubygems.org/](https://rubygems.org/)  
specs:  
addressable (2.5.1)  
public\_suffix (~\> 2.0, \>= 2.0.2)  
colorator (1.1.0)  
ffi (1.9.18)  
ffi (1.9.18-java)  
ffi (1.9.18-x64-mingw32)  
ffi (1.9.18-x86-mingw32)  
forwardable-extended (2.6.0)  
jekyll (3.4.3)  
addressable (~\> 2.4)  
colorator (~\> 1.0)  
jekyll-sass-converter (~\> 1.0)  
jekyll-watch (~\> 1.1)  
kramdown (~\> 1.3)  
liquid (~\> 3.0)  
mercenary (~\> 0.3.3)  
pathutil (~\> 0.9)  
rouge (~\> 1.7)  
safe\_yaml (~\> 1.0)  
jekyll-feed (0.9.2)  
jekyll (~\> 3.3)  
jekyll-sass-converter (1.5.0)  
sass (~\> 3.4)  
jekyll-watch (1.5.0)  
listen (~\> 3.0, \< 3.1)  
kramdown (1.13.2)  
liquid (3.0.6)  
listen (3.0.8)  
rb-fsevent (~\> 0.9, \>= 0.9.4)  
rb-inotify (~\> 0.9, \>= 0.9.7)  
mercenary (0.3.6)  
minima (2.1.1)  
jekyll (~\> 3.3)  
pathutil (0.14.0)  
forwardable-extended (~\> 2.6)  
public\_suffix (2.0.5)  
rb-fsevent (0.9.8)  
rb-inotify (0.9.8)  
ffi (\>= 0.5.0)  
rouge (1.11.1)  
safe\_yaml (1.0.4)  
sass (3.4.23)  
thread\_safe (0.3.6)  
thread\_safe (0.3.6-java)  
tzinfo (1.2.3)  
thread\_safe (~\> 0.1)  
tzinfo-data (1.2017.2)  
tzinfo (\>= 1.0.0)

PLATFORMS  
java  
ruby  
x64-mingw32  
x86-mingw32  
x86-mswin32

DEPENDENCIES  
jekyll (= 3.4.3)  
jekyll-feed (~\> 0.6)  
minima (~\> 2.0)  
tzinfo-data

RUBY VERSION  
ruby 2.3.4p301

BUNDLED WITH  
1.14.6

The content of the blog is just the default “Hello World Jekyll Stuff”.

What do I miss? Thanks for any help!

---

<div class="post-metadata">

**Author:** ![mmistakes](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/mmistakes/32/2169_2.png) [@mmistakes](https://talk.jekyllrb.com/u/mmistakes)\
**Post date:** [April 30, 2017, 10:57pm UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/2 "2017-04-30T22:57:12Z")

</div>

What’s on line 46 of your `_config.yml`?

```auto
/usr/lib/ruby/vendor_ruby/liquid/htmltags.rb:43: warning: key "index0" is duplicated and overwritten on line 46
Configuration file: /mnt/d/Temp/my-awesome-site2/_config.yml

```

---

<div class="post-metadata">

**Author:** ![robertmuehsig](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/robertmuehsig/32/198_2.png) [@robertmuehsig](https://talk.jekyllrb.com/u/robertmuehsig)\
**Post date:** [May 1, 2017, 9:47am UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/3 "2017-05-01T09:47:43Z")

</div>

Nothing - it is more or less a blank \_config.yml file and has only 34 lines.

```
# Welcome to Jekyll!
#
# This config file is meant for settings that affect your whole blog, values
# which you are expected to set up once and rarely edit after that. If you find
# yourself editing this file very often, consider using Jekyll's data files
# feature for the data you need to update frequently.
#
# For technical reasons, this file is *NOT* reloaded automatically when you use
# 'bundle exec jekyll serve'. If you change this file, please restart the server process.

# Site settings
# These are used to personalize your new site. If you look in the HTML files,
# you will see them accessed via {{ site.title }}, {{ site.email }}, and so on.
# You can create any custom variable you would like, and they will be accessible
# in the templates via {{ site.myvariable }}.
title: Your awesome title
email: your-email@domain.com
description: > # this means to ignore newlines until "baseurl:"
  Write an awesome description for your new site here. You can edit this
  line in _config.yml. It will appear in your document head meta (for
  Google search results) and in your feed.xml site description.
baseurl: "" # the subpath of your site, e.g. /blog
url: "" # the base hostname & protocol for your site, e.g. http://example.com
twitter_username: jekyllrb
github_username: jekyll

# Build settings
markdown: kramdown
theme: minima
gems:
  - jekyll-feed
exclude:
  - Gemfile
  - Gemfile.lock

```

The error also occures when I just have one static index.html in the folder, which should just work (at least it does on GH Pages)

---

<div class="post-metadata">

**Author:** ![robertmuehsig](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/robertmuehsig/32/198_2.png) [@robertmuehsig](https://talk.jekyllrb.com/u/robertmuehsig)\
**Post date:** [May 1, 2017, 11:55am UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/4 "2017-05-01T11:55:59Z")

</div>

When I do a jekyll build --trace I got this, maybe this is helpful:

```
robert@XMG-ROBERT:/mnt/d/Temp/my-awesome-site2$ jekyll build --trace
/usr/lib/ruby/vendor_ruby/liquid/htmltags.rb:43: warning: key "index0" is duplicated and overwritten on line 46
Configuration file: /mnt/d/Temp/my-awesome-site2/_config.yml
/var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/liquid_renderer.rb:8:in `initialize': undefined method `error_mode=' for Liquid::Template:Class (NoMethodError)
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/site.rb:28:in `new'
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/site.rb:28:in `initialize'
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/commands/build.rb:28:in `new'
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/commands/build.rb:28:in `process'
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/lib/jekyll/commands/build.rb:16:in `block (2 levels) in init_with_program'
        from /var/lib/gems/2.3.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `block in execute'
        from /var/lib/gems/2.3.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `each'
        from /var/lib/gems/2.3.0/gems/mercenary-0.3.6/lib/mercenary/command.rb:220:in `execute'
        from /var/lib/gems/2.3.0/gems/mercenary-0.3.6/lib/mercenary/program.rb:42:in `go'
        from /var/lib/gems/2.3.0/gems/mercenary-0.3.6/lib/mercenary.rb:19:in `program'
        from /var/lib/gems/2.3.0/gems/jekyll-3.4.3/exe/jekyll:13:in `<top (required)>'
        from /usr/local/bin/jekyll:22:in `load'
        from /usr/local/bin/jekyll:22:in `<main>'
```

---

<div class="post-metadata">

**Author:** ![robertmuehsig](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/robertmuehsig/32/198_2.png) [@robertmuehsig](https://talk.jekyllrb.com/u/robertmuehsig)\
**Post date:** [May 2, 2017, 8:44pm UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/5 "2017-05-02T20:44:14Z")

</div>

I reinstalled the Ubuntu on Windows stuff and did everything again - now it is working. No idea why, but ok for me.

---

<div class="post-metadata">

**Author:** ![urig](https://yyz2.discourse-cdn.com/flex030/user_avatar/talk.jekyllrb.com/urig/32/655_2.png) [@urig](https://talk.jekyllrb.com/u/urig)\
**Post date:** [December 24, 2017, 10:51am UTC](https://talk.jekyllrb.com/t/jekyll-3-4-3-error-undefined-method-error-mode-for-liquid-template-class/501/6 "2017-12-24T10:51:29Z")

</div>

Great to hear you’ve bee able to resolve this because I’m having the exact same issues (albeit w/ Jekyll v3.6.2). May I ask what steps did you take to reinstall WSL?