I'm getting this error when trying to install bundle. I have both versions '0.15.4' and '0.25.1' of gem excon in my gemset. How can I fix this?
Bundler could not find compatible versions for gem "excon":
In Gemfile: mandrill-api (>= 0) ruby depends on excon (~> 0.15.4) ruby
fog (~> 1.10.1) ruby depends on
excon (0.25.1)