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升级到Ubuntu 18.04后出现Rails控制台错误

ruby-on-rails-5.2 ruby-on-rails-5.1 ruby ruby-on-rails

James · 技术社区 · 8 年前

从ubuntu 16.04升级到ubuntu 18.04后,我在运行时收到以下错误 rails console 从rails项目的根目录。只有控制台似乎受到了影响,我可以毫无问题地启动puma服务器。

Running via Spring preloader in process 23887
/home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require': libreadline.so.6: cannot open shared object file: No such file or directory - /home/user/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/x86_64-linux/readline.so (LoadError)
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/irb/completion.rb:10:in `<top (required)>'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/commands/console/console_command.rb:2:in `<top (required)>'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command/behavior.rb:82:in `block (2 levels) in lookup'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command/behavior.rb:78:in `each'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command/behavior.rb:78:in `block in lookup'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command/behavior.rb:77:in `each'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command/behavior.rb:77:in `lookup'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command.rb:68:in `find_by_namespace'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/command.rb:42:in `invoke'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/railties-5.1.6/lib/rails/commands.rb:16:in `<top (required)>'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `block in require'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:292:in `require'
    from /home/user/dev/projects/SRTrackerMySQL/bin/rails:9:in `<top (required)>'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `load'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `block in load'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:258:in `load_dependency'
    from /home/user/.rvm/gems/ruby-2.4.1/gems/activesupport-5.1.6/lib/active_support/dependencies.rb:286:in `load'
    from /home/user/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from /home/user/.rvm/rubies/ruby-2.4.1/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from -e:1:in `<main>'

我已经跑了 bundle install 并在新的rails项目中进行了尝试 Rails 5.1.6 和 Rails 5.2

我也试过跑步 RAILS_ENV=production bundle exec rails console

我使用的是Ruby版本:

ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]

6 回复 | 直到 8 年前

Brian Samson 8 年前

您需要确保已安装readline。您正在使用RVM,因此可以运行:

rvm requirements

它应该有助于确保您安装了所需的一切,然后:

rvm reinstall 2.4.1

如果需要确保你的红宝石很好用。

kaydanzie 7 年前

我有同样的问题,但我们使用 rbenv 而不是 rvm .与Brian的答案相似,我的答案是:

rbenv uninstall 2.4.1
rbenv install 2.4.1

Augusto Carmo 6 年前

在终端上运行以下代码为我解决了问题:

cd /lib/x86_64-linux-gnu
sudo ln -s libreadline.so.7.0 libreadline.so.6

ADMAT Bandara 7 年前

升级后我也有同样的问题。我猜RVM出现了问题。

因此,首先卸载RVM。

rvm implode

然后,执行以下命令再次安装RVM

sudo apt install gnupg2
gpg2 --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
cd /tmp
curl -sSL https://get.rvm.io -o rvm.sh
less /tmp/rvm.sh
cat /tmp/rvm.sh | bash -s stable --rails
source /home/admat/.rvm/scripts/rvm

重新加载RVM

rvm reload

安装ruby版本

rvm install _version_

使用bundle命令安装gems

bundle install

完成!!!!!

如果您想了解有关将ruby安装到ubuntu 18.04的更多详细信息,请尝试以下链接 Install ruby on rails with Ubuntu 18.04

Phil 6 年前

重新安装Ruby和重新设置rbenv对我来说不起作用。最后,我选择了当前安装的简单符号链接 libreadline.so7

locate libreadline.so

这返回了一个完整的可能选项列表,但最可能有用的选项似乎是 /lib/x86_64-linux-gnu/libreadline.so.7

sudo ln -s /lib/x86_64-linux-gnu/libreadline.so.7 /lib/x86_64-linux-gnu/libreadline.so.6

链接后,我现在可以跑步了 rails console 和使用 byebug 再一次

almawhoob 7 年前

我也无法跑步 rails console 将Ubuntu从16.04升级到18.04之后。我得到了类似的结果:

-bash: error while loading shared libraries: libreadline.so.6: cannot open shared object file: No such file or directory

我必须按照此处发布的说明重新安装rvm: https://github.com/rvm/ubuntu_rvm