Rakeエラー rake spec rake aborted!

Railsでrake specを使い、rspecを実行しましたが、NoMEthodErrorになりました。

仕様

# A sample Gemfile
source "https://rubygems.org"

gem "rspec", ">= 3.0.0"
gem "rake"

Rakefileを作成する

require 'rspec/core/rake_task'
RSpec::Core::RakeTask.new(:spec)
task :default => :spec

rakeコマンドでspecを実行

$ bundle exec rake spec

エラー

$ bundle exec rake spec
rake aborted!
NoMethodError: undefined method `last_comment' for #<Rake::Application:0x00007fb211222548>
/Users/yuki/rspec_test/Rakefile:3:in `new'
/Users/yuki/rspec_test/Rakefile:3:in `<top (required)>'
/Users/yuki/.rbenv/versions/2.5.1/bin/bundle:23:in `load'
/Users/yuki/.rbenv/versions/2.5.1/bin/bundle:23:in `<main>'
(See full trace by running task with --trace)

解決方法

gemのバージョンを指定し直し、bundleし直しました。

# A sample Gemfile
source "https://rubygems.org"

gem 'rspec', '~> 3.0.0'
gem 'rake', '< 11.0'

するとエラー回避、正常に働きました！

$ bundle exec rake spec
/Users/yuki/.rbenv/versions/2.5.1/bin/ruby -I/Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/rspec-core-3.0.4/lib:/Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/rspec-support-3.0.4/lib -S /Users/yuki/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/rspec-core-3.0.4/exe/rspec ./spec/hello_spec.rb
Run options: include {:focus=>true}

All examples were filtered out; ignoring {:focus=>true}

Hello
  message return hello

Finished in 0.00169 seconds (files took 0.16417 seconds to load)
1 example, 0 failures

Top 1 slowest examples (0.00114 seconds, 67.4% of total time):
  Hello message return hello
    0.00114 seconds ./spec/hello_spec.rb:4