Fetching devise-4.6.2.gem
ERROR: Error installing devise:
The last version of responders (>= 0) to support your Ruby & RubyGems was 2.4.1. Try installing it with `gem install responders -v 2.4.1` and then running the current command again
responders requires Ruby version >= 2.4.0. The current ruby version is 2.3.3.222.
how to update from one version of ruby to another.??
how to update from one version of ruby to another.??