问题
I got an error: Your Ruby version is 2.3.3, but your Gemfile specified 2.5.2 with running bundle install.
Besides, ruby -v shows ruby 2.5.2p104 (2018-10-18 revision 65133) [x86_64-linux].
OS: Debian 9
Problem with bundler was solved with: Your Ruby version is 2.0.0, but your Gemfile specified 2.1.0
But now there is the same error with rails s
回答1:
The problem was solved by,
rvm reinstall ruby-2.5.2
rvm default use ruby-2.5.2
bundle install
bin/rails s
来源：https://stackoverflow.com/questions/54086963/how-to-fix-your-ruby-version-is-2-3-3-but-your-gemfile-specified-2-5-2