`spring rspec` just displays spring help.. why?

ANSWER OUTDATED! Was fixed. See @pfleidi's answer below.

I've solved the problem, even if i dont know why it has solved the problem.

Just remove gem 'spring', group: :development from the Gemfile so that you only have gem 'spring-commands-rspec' left.

Run bundle install and then spring rpsec spec will work! Its sooo fast :)

You have to restart the spring. So stop it and then re-run it

spring stop

spring rspec

Then it should works as expected.

I had the same problem. I've solved it by stopping spring and adding to my Gemfile:

gem 'spring-commands-rspec', group: :development, require: false

Spring needs to be restarted in order to use the newly added command.

bin/spring stop
bin/rspec path/to/file.rb