heroku - Which rails gem do I need? -


I just locked one rail app after that, after which my rail server no longer works. It gives the following error 

  Bin / Rail: 4: In `requirement ': Can not load such files - Rail / Order (Load Irr) without bin / Rail: 4:` & lt ; Main & gt;   
 I ran  gem query - local  and saw that 4.1 was set up. Will someone tell me what is this error and how to solve it   
 
 
 Who is you in your path Need to check the rails from ... You are probably running on a Mac which is a native rail.  
 Read this documentation to learn how to set your default Rail example.  
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