新建了一个 web 项目但执行 rails s 命令时出现:
You're using Rubygems 1.8.23 with Spring. Upgrade to at least Rubygems 2.1.0 and run gem pristine --all
for better startup performance.
Could not find erubis-2.7.0 in any of the sources
Run bundle install
to install missing gems.
求解