"Page build error" when clicking a new github blog post

Question

I have a blog hosted on github using jekyll bootstrap. This worked for a while, but the last new times, when I tried to publish a new blog page, it was not able to click on github:

Page build error with the following error:

Page Build Error

For Jekyll troubleshooting information, see https://help.github.com/articles/using-jekyll-with-pages#troubleshooting If you have any questions, contact GitHub support.

I tried to delete recent posts that I added so that I matched the live version and I ran jekyll --safe locally (no problem). I can run jekyll --server and run the site locally, and everything is fine, but when I click it, there is no joy. I removed jekyll gems and its dependencies and added again using versions that match the versions used by github, and no joy there either.

Before I get back to deleting the entire blog and repeat it again, can anyone suggest trying something else?

Answer 1

Fixed.

For some reason, my categories in my posts were surrounded by square brackets that represent the collection - this is no longer supported (it probably never was supported, but just let me leave it). Changed this and everything works now.