Unable to run Rubocop

[coding-red-panda]

I just upgraded Rubocop to the latest version, but when I try to run it now, I receive the error:

➜  bundle exec rubocop
Error: Unknown Ruby version 0.0 found in `.ruby-version`.
Known versions: 1.9, 2.0, 2.1, 2.2, 2.3

This behaviour started after the upgrade.

Expected behavior

I expect Rubocop to work

Actual behavior

It spits out this error. Worked fine before the upgrade.

Steps to reproduce the problem

Have Ruby 2.2.5 installed, and upgrade from 0.40.0 to 0.41.1
Then use the command bundle exec rubocop --auto-gen-config or just bundle exec rubocop
Running the -V command works for some reason.

RuboCop version

$ rubocop -V
0.41.1 (using Parser 2.3.1.2, running on ruby 2.2.5 x86_64-darwin15)

[coding-red-panda]

Update

Our .ruby-version file originally contained the value ruby-2.2.5.
When I switched this 2.2.5 it suddenly worked fine.

[bquorning]

Seems to be caused by #3228 - cc/ @pclalv

[bbatsov]

If rbenv supports both notations, I guess we should support them as well.

[aviflax]

I’m having the same problem, but I’m using JRuby, so my prefix in .ruby-version is jruby. It doesn’t seem like #3251 will fix the problem for JRuby users.

[achiinto]

We have our own build of Ruby, which is basically the same copy of Ruby as publicized, Just due to enterprise security reason, we ended up with our own and have a different naming. So, this bug is preventing it to work.

[bquorning]

@achiinto I believe #3261 will fix the problem?

[achiinto]

hi @bquorning, seems like that will fix it. Thanks