Bundler could not find compatible versions for gem "railties":
In snapshot (Gemfile.lock):
railties (= 5.2.0.rc1)
In Gemfile:
coffee-rails was resolved to 4.2.2, which depends on
railties (>= 4.0.0)
font-mfizz-rails (~> 1.1) was resolved to 1.1.0, which depends on
railties (< 5.1, >= 3.2)
rails (~> 5.2.0.rc1) was resolved to 5.2.0.rc1, which depends on
railties (= 5.2.0.rc1)
sass-rails (~> 5.0) was resolved to 5.0.7, which depends on
railties (< 6, >= 4.0.0)
web-console (>= 3.3.0) was resolved to 3.5.1, which depends on
railties (>= 5.0)
Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.
Due to dependencies: