console cと打ってエラーがでました

Question

データがちゃんと入っているか確認したいので　console c と打ったらエラーが出ました。

$ rails c
Running via Spring preloader in process 11647
Traceback (most recent call last):
        50: from -e:1:in `<main>'
        49: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        48: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        47: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
        46: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        45: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `block in load'
        44: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
        43: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
        42: from /Users/(本名)/training1/training_instagram/bin/rails:9:in `<main>'
        41: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        40: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        39: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        38: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        37: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        36: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        35: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
        34: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
        33: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands.rb:18:in `<main>'
        32: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command.rb:44:in `invoke'
        31: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command.rb:70:in `find_by_namespace'
        30: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/behavior.rb:79:in `lookup'
        29: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/behavior.rb:79:in `each'
        28: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/behavior.rb:80:in `block in lookup'
        27: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/behavior.rb:80:in `each'
        26: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/command/behavior.rb:84:in `block (2 levels) in lookup'
        25: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        24: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        23: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        22: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        21: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        20: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        19: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
        18: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
        17: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/commands/console/console_command.rb:4:in `<main>'
        16: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        15: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        14: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        13: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        12: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        11: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        10: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
         9: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
         8: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/irb/completion.rb:10:in `<main>'
         7: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
         6: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
         5: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
         4: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
         3: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
         2: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
         1: from /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
/Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require': dlopen(/Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/x86_64-darwin18/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)
  Referenced from: /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/x86_64-darwin18/readline.bundle
  Reason: image not found - /Users/(本名)/.rbenv/versions/2.6.2/lib/ruby/2.6.0/x86_64-darwin18/readline.bundle

Comments

[gentaro]

どう見ても「console c」とは打ってないように見えますが。

[退会済みユーザー]

console c？

[shun222]

railsでは rails c でコンソールを開くことができます。

[gentaro]

びっくりするほど会話が成立してない。
「console cと打ってエラーがでました」
と書いてるのはご自身では？

Answer 1

Homebrewにインストールされていたreadlineが更新されていたのが原因でした。
$brew switch readline 7.0.5
と打ったら治りました。

Answer 2

ディレクトリを見る限りMacですかね

readlineパッケージをbrewでインストールした後に
rbenvでrubyをインストール(ビルド)し直してください

また、この際ruby-buildのバージョンも最新かどうか確認するとよいでしょう。(1ヶ月くらい前のバージョンにバグがあったらしいです)

Comments

[shun222]

無事解決できました
回答ありがとうございます

Answer 3

9): Library not loaded: /usr/local/opt/readline/lib/libreadline.7.dylib (LoadError)
とありますので、rubyのライブラリーのひとつ readline が 無いようです。
rubyはできているものをとりよせたのではなく、そのPC上で作ったのだと思います。
例えばCentOSの場合
yum -y install gcc-c++ glibc-headers openssl-devel readline libyaml-devel readline-devel zlib zlib-devel libffi-devel libxml2 libxslt libxml2-devel libxslt-devel sqlite-devel
として必要なlibを集めてからmakeしてます

Comments

[shun222]

回答ありがとうございます。
無事解決できました