You have already activated rake 10.1.1, but your Gemfile requires rake 10.1.0.; Prepending Your Gemfile lists the gem pry (~> 0.9.12.2) more than once.
You should probably keep only one of them.
While it's not a problem now, it could cause errors if you change the version of just one of them later.
bundler: exec needs a command to run to your command may solve this.