Jekyll has just decided to stop generating

[o0nj]

Hello. I failed to generate exactly the same content I had generated some time ago with Jekyll. The error message says,

Conversion error: Jekyll::Converters::Markdown encountered an error while converting '_posts/2015-05-01-sciences.markdown/#excerpt':
Failed to get header.
jekyll 2.5.3 | Error: Failed to get header.

I am sure that the versions of both Ruby and Jekyll are the same as before. I also keep my blog in a git repository and git diff and git status show nothing. Not even a byte.

Perhaps a side effect of some other change in one of the gems or other tools? My Jekyll version is 2.5.3.

Thanks.

[parkr]

Check out the issues here for that error, "Failed to get header." This has to do with Pygments in most cases. Furthermore, re-run jekyll with --trace to get more details about what's going on. This is a Python/Pygments problem. Ensure Python 2.6/7 is in your $PATH and that pygments.rb gem is installed.

[o0nj]

Thanks for the quick reply. I have Python in my $PATH and pygments is installed. As I said, I had successfully generated the blog on the exact same machine that I have failed to generate yesterday, and blog had no changes. If the configuration about Python or pygments was not proper, I couldn't generate it in the first place. I have also looked up the error before submitting this issue and came across the same content with the link you have provided, and followed suggestions. Still nothing. Unfortunately I will try to generate the blog on my server. This is probably a mysterious side effect of something else. Thanks again.

[parkr]

I have Python in my $PATH and pygments is installed.

pygments via pip or pygments.rb via gem? You'll want the latter. Sometimes running gem install jekyll helps ensure gem issues are resolved.

I have also looked up the error before submitting this issue and came across the same content with the link you have provided, and followed suggestions. Still nothing.

Sorry, we get so many duplicate reports and this one didn't have anything new that I could remember so I figured it was already tracked (and possibly solved).

I'm fairly certain this is not a bug. If you're still stuck, create a post on https://talk.jekyllrb.com and we can help you out there. Are you on Windows, Mac or Linux?

[o0nj]

I am on Linux, and I have pygments installed both for Ruby and Python. The interesting thing was that I had succesfully generated the blog before various times, but I fail to do so with the exact same configuration now. I think I'll share the situation at Jekyll forums. Thank you again for the reply.

[o0nj]

Hi. I have struggled with upgrading the packages and experimentation with different virtual environments. All failed. However after changing the highlighter to rouge, it worked! The solution:

$ sudo gem install rouge
$ echo "highlighter: rouge" >> _config.yml
$ jekyll build