Bundling my app doesn't work

[tenderlove]

I'm not sure what I am doing wrong. You can see the Gemfile here (note that it's on a branch if you want to check it out).

When I bundle, the output is this:

[aaron@TC manageiq (rails5)]$ bundle update
Updating git://github.com/rest-client/rest-client.git
Updating git://github.com/ManageIQ/handsoap.git
Updating git://github.com/ManageIQ/rubywbem.git
Updating git://github.com/jasmine/jasmine-gem.git
Updating git://github.com/rails/rails.git
Updating git://github.com/rails/arel.git
Updating https://github.com/amatsuda/jquery-rjs.git
Updating git://github.com/rails/jquery-rails.git
Updating git://github.com/ManageIQ/ruport.git
Updating git://github.com/ManageIQ/rubyrep.git
Updating git://github.com/ManageIQ/WinRM.git
Updating git://github.com/ManageIQ/ziya.git
Updating git://github.com/tenderlove/default_value_for.git
Updating git://github.com/tenderlove/rails-i18n.git
Updating git://github.com/ManageIQ/metric_fu.git
Fetching gem metadata from https://rails-assets.org/...
Fetching version metadata from https://rails-assets.org/..
Fetching gem metadata from https://rubygems.org/........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies.......................................................................
Bundler could not find compatible versions for gem "railties":
  In Gemfile:
    railties (>= 4.2.0) ruby

    railties (= 5.0.0.alpha) ruby

    rails-i18n (>= 0) ruby depends on
      railties (~> 5.0) ruby

    railties (< 5, >= 3.0) ruby

    railties (>= 3.0) ruby
Could not find gem 'railties (~> 5.0) ruby in any of the sources

I don't know why it's printing out railties and some version specifiers so many times. I see that one of them requires railties to be < 5, but I can't figure out where that is coming from.

Here's some (possibly) relevant stuff about my environment:

[aaron@TC manageiq (rails5)]$ bundle -v
Bundler version 1.10.5
[aaron@TC manageiq (rails5)]$ ruby -v
ruby 2.3.0dev (2015-07-15 ecdh 51247) [x86_64-darwin14]
last_commit=add ecdh support
[aaron@TC manageiq (rails5)]$ gem -v
2.5.0
[aaron@TC manageiq (rails5)]$

[segiddins]

I can''t bundle install given your Gemfile requires path gems that I obviously don't have installed in the same location, but I'm guessing the root cause of the error is coming from the second gem file you're eval'ing from gems/pending/Gemfile ?

[indirect]

Here's a gist with a composite Gemfile, with the paths switched to use rails/rails, and the output from running DEBUG_RESOLVER=true bundle install: https://gist.github.com/indirect/77c0953e6900d44f658b

[segiddins]

While I work on improving the exception message we raise, here's a different message (the default molinillo exception):

Unable to satisfy the following requirements:

- `railties (>= 4.2.0) ruby` required by `jquery-rails (4.0.4)`
- `railties (~> 5.0) ruby` required by `rails-i18n (4.0.4)`
- `railties (= 5.0.0.alpha) ruby` required by `rails (5.0.0.alpha)`
- `railties (< 5, >= 3.0) ruby` required by `codemirror-rails (4.2)`
- `railties (>= 3.0) ruby` required by `rspec-rails (2.14.2)`

[indirect]

And for the record, here's the requirement that can't be satisfied:

irb(main):002:0> Gem::Requirement.new("~> 5.0").satisfied_by?(Gem::Version.new("5.0.0.alpha"))
=> false

[indirect]

@tenderlove thanks for reporting this! We'll work on improving the error message when requirements can't be satisfied by the given Gemfile.

In the meantime, since your version of rails-i18n requires a version of railties that doesn't actually exist, I'm going to close this as "Bundler working correctly".

[indirect]

(Oh, and note that the final line, Could not find gem 'railties (~> 5.0) ruby in any of the sources is the lowest-level error: it's not just that there was a conflict between railties = 5.0.0.alpha and railties ~> 5.0, it's that there are ultimately no versions of railties in existence that satisfy the requirement ~> 5.0.)

[segiddins]

Between #3862 and CocoaPods/Molinillo#24, the error message should become a lot more helpful