uninitialized constant Rack::Session::Abstract::Persisted to start Rails 5 server

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I am getting this error while running command rails s

=> Booting Thin
=> Rails 5.0.0.1 application starting in development on http://localh


                      
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                  耶瑟儿～        
                
              
                            
                2021-01-25 12:08
              
            
            
                                                                       
It looks you're using rack from two places /usr/lib/ruby/vendor_ruby/rack and /var/lib/gems/2.2.0/gems/rack-2.0.1.
Removing that vendor_ruby (not confirmed) could help. Buy maybe a better choice is to install rvm or rbenv to handle your ruby/gems versions.
                                                                        
                                                        
            
            
              
                
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