Bundle无法安装better_errors.
Gem::InstallError: better_errors requires Ruby version >= 2.0.0.
An error occurred while installing better_errors (2.0.0), and Bundler cannot continue.
Make sure that `gem install better_errors -v '2.0.0'` succeeds before bundling.
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但gem install better_errors工作正常.
ruby --version说ruby 2.0.0p353 (2013-11-22 revision 43784) [x86_64-linux-gnu].我已经尝试升级到2.1但仍然无法正常工作.
有什么建议?