Error installing the raspell gem
When you get this while installing the raspell gem:
ERROR: Error installing raspell:
ERROR: Failed to build gem native extension.
You need some libraries:
sudo apt-get install libaspell-dev
Related cards:
How to make changes to a Ruby gem (as a Rails developer)
At makandra, we've built a few gems over the years. Some of these are quite popular: spreewald (> 1M downloads), active_type (> 1M downloads), and geordi (> 200k downloads)
Developing a Ruby gem is different from developing Rails applications, w...
Bundler: Gemfile.lock is corrupt & gems are missing from the DEPENDENCIES section
So you're getting this failure when running bundle install on an older project:
Your Gemfile.lock is corrupt. The following gems are missing from the DEPENDENCIES section: 'archive-tar-minitar' 'hoe' 'rcov'
This happens when you ar...
Migrate gem tests from Travis CI to Github Actions with gemika
We currently test most of our gems on Travis CI, but want to migrate those tests to Github Actions. This is a step-by-step guide on how to do this.
Note that this guide requires the gem to use gemika.
- Go...
Gemspecs must not list the same gem as both runtime and development dependency
When you're developing a gem, never list the same dependency as both runtime and development dependency in your .gemspec.
So don't do this:
spec.add_dependency 'activesupport'
spec.add_development_dependency 'activesupport', '~> 2....
Error installing gem with native extension (collect2: error: ld returned 1 exit status)
If you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's due to missing development headers of a library (ld is the linker).
For example, with this output:
$ gem install json
Building native ...
Bundler error: Downloading gem revealed dependencies not in the API
Recent Bundler (1.16.1) started complaining about missing dependencies in the Gemfile. This is due to a stricter handling of specifications (see attached link).
The error message looks like this:
Downloading example-gem-1.2.3 revealed depend...
Howto: Require a gem that is not in Gemfile
In case you want to require a gem, that is not in the Gemfile of you bundle and therefore not in your loadpath, you need to add the path manually and require the gem afterwards.
Expected error
Requiring a gem, that is not in the Gemfile or ...
Always show the page if there is an error in Cucumber
Are you adding a "Then show me the page" and re-run Cucumber whenever there is a failing scenario? Don't be that guy!
Save time with the shiny new version of our cucumber_spinner gem. It comes wit...
Fix for mysql2 error "Incorrect MySQL client library version! This gem was compiled for x.x.x but the client library is y.y.y."
This should be fixed in the latest LTS-branches of our mysql2 fork, 0.2.x-lts and 0.3.x-lts.
Use
gem 'mysql2', git: 'https://github.com/makandra/mysql2', branch: '0.2.x-lts' # for Rails 2.x
gem 'mys...
Fix error: Missing the mysql2 gem
So you got this error, even though your Gemfile bundles mysql2:
!!! Missing the mysql2 gem. Add it to your Gemfile: gem 'mysql2'
or
Please install the mysql adapter: `gem install activerecord-mysql-adapter` (mysql is not par...