I am trying to set up my project but getting the error regarding bundler. I am using Rails 4.2.11.3
Please have a look at the image. 
I am trying to set up my project but getting the error regarding bundler. I am using Rails 4.2.11.3
Please have a look at the image. 
You can use a specific older version of bundler as follows:
bundle _1.17.3_
If this doesn't resolve to problem, I'd need more information about the Gemfile and Gemfile.lock to understand how it's been "corrupted" into an invalid state of dependencies.