Unresolved specs during Gem::Specification.reset:

Question

When launching Guard, I'm getting this output:

$ guard
WARN: Unresolved specs during Gem::Specification.reset:
      lumberjack (>= 1.0.2)
      ffi (>= 0.5.0)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.

What does this mean, and how do I fix it?

Contents of Guardfile:

guard 'livereload' do
    watch(%r{.+\.(css|js|html)$})
end
guard 'sass', :input => 'css', :style => :compressed, :extension => '.min.css'

Answer 1

I use gem list gem-name; gem uninstall gem-name to clean the gem one by one because of the dependency. After that, the error does not show again.

Answer 2

I was getting this message while running Rspec within a Guard plugin gem, using bundle exec rspec. It turned out to be a missing line in the gemspec file:

$:.push File.expand_path("../lib", __FILE__)

This line is normally at the top of the file (in many of the gems I have recently been working in) and I had commented it out to see why.

Answer 3

Remember, if you want to use guard, you have to add gem guard to Gemfile.

group :developement, :test do
  gem 'guard'
end

Then, run

bundle install

I hope this can help you.

Answer 4

Using the following command solved it for me:

bundle clean --force

See guard-and-unresolved-specs for more info

Answer 5

Use Bundler. Call bundle exec guard, not guard.

Answer 6

This worked for me:

bundle clean --force

then

bundle install

to reinstall gems.