Ruby 2.2.1 did not contain rubocop.checker ruby/rubocop:can't parse version string (abnormal termination?)

I would like to use rubocop on my Mac (Yosemite).

$rubocop<filename>

Then you can do a syntax check.

However, the problem is that the syntax check after saving is not possible in vim.

Below is the work history.

=======================================================

I added rubocop to vimrc by referring to the article below.
http://qiita.com/yuku_t/items/0ac33cea18e10f14e185

r It is done under ruby 2.2.1 environment.For some reason, ruby is fixed with this version.

NeoBundle'scroolose/syntastic'
letg:syntastic_mode_map = {'mode': 'passive',
            \ 'active_filetypes': ['ruby']}
letg:syntastic_ruby_checkers=['rubocop']

However, I received the following error:

symmetric:error:checker output:
warning —you are loading parser/ruby22 from ~/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubyge
ms/core_ext/kernel_require.rb: 69:in `require'.
warning —Ruby 2.2 is not released yet and parser support may be incomplete.
0.26.1
symmetric:error:checker ruby/rubocop:can't parse version string (abnormal termination?)

Therefore, I dropped the version by referring to the article below.
http://qiita.com/ka2n/items/55a435c10a240ea5d434

parser —2.2.0.pre.5
Rubocop:0.26.1

However, I still received the following error and could not find out any more.

warning: parser/current is loading parser/ruby22, which recognizes
warning: 2.2.3-component syntax, but you are running 2.2.1.
warning —Please see https://github.com/whitequark/parser#compatibility-with-ruby-mri.
0.35.1

When I looked into it, I saw an article saying rubocop would not work unless it was the latest version.
Does it mean that 2.2.1 won't work?

Thank you for your cooperation.

ruby-on-rails ruby rubygems

2022-09-30 18:06

1 Answers

After Rails-rubocop, the parser setting was warning. -Qiita

Based on the Qiita article, I looked up the version of parsergem (rubocop dependent gem) that works without causing any errors.
Ruby 2.2.1 and Rubocop seem to have corresponding parsergem version 2.2.0.1

bundle init and described in rubocop (no version specified), parser (with version specified)
Open the appropriate .rb file in vim and save it.Verified operation.
If you get an error, do gem uninstall rubocop parserast;gem cleanup; and lower the versioning of the parsergem to bundle update

Now you can create a combination of gems that work without bundle exec.

Gemfile:

source 'https://rubygems.org'

gem 'rubocop'
gem 'parser', '2.2.0.1'

The relationship between the versions recorded in Gemfile.lock is as follows:

GEM
  remote —https://rubygems.org/
  specifics:
    as (2.1.0)
    astrolabe (1.3.1)
      parser (~>2.2)
    parser (2.2.0.1)
      ast(>=1.1, <3.0)
      US>slop (~>3.4, >=3.4.5)
    powerpack (0.1.1)
    rainbow (2.0.0)
    rubocop (0.30.0)
      astrolabe (~>1.3)
      parser(>=2.2.0.1, <3.0)
      powerpack (~>0.1)
      rainbow(>=1.99.1, <3.0)
      ruby-progressbar (~>1.4)
    ruby-progressbar (1.7.5)
    US>slop (3.6.0)

PLATFORMS
  ruby

DEPENDENCIES
  parser(=2.2.0.1)
  rubocop

BUNDLED WITH
   1.10.6

2022-09-30 18:06

If you have any answers or tips

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