如何从/ usr / local / bin / rails：23：在`<main>'中加载/usr/share/rubygems-integration/all/gems/railties-4.2.6/bin/rails(LoadError）？

Question

如果我检查rails的版本，它显示的是无法加载的错误，如何加载rails？

错误：/ usr / local / bin / rails：23：in load': cannot load such file -- /usr/share/rubygems-integration/all/gems/railties-4.2.6/bin/rails (LoadError) from /usr/local/bin/rails:23:in'