Installation fails on RubyMotion install with Ruby 1.8

[dlo]

I've just purchased RubyMotion and just ran gem install bubble-wrap. My Rakefile looks like this:

# -*- coding: utf-8 -*-
$:.unshift("/Library/RubyMotion/lib")
require 'motion/project'
require 'bubble-wrap'

Motion::Project::App.setup do |app|
  # Use `rake config' to see complete project settings.
  app.name = 'Issues'
  app.identifier = 'io.aurora.Issues'
end

This is what happens when I run rake:

$ rake --trace
(in MYFOLDER)
rake aborted!
no such file to load -- bubble-wrap
MYFOLDER/Rakefile:4:in `require'
MYFOLDER/Rakefile:4
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2383:in `raw_load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2017:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2016:in `load_rakefile'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2000:in `run'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rake.rb:1998:in `run'
/usr/bin/rake:31

It appears as though the installation failed. Would love any pointers in the right direction, thanks!

[clayallsopp]

Looks like you're using the system-default Ruby 1.8 to run RubyMotion, that on purpose? I don't know if RubyMotion supports 1.8.x. Either way, running rake is probably using that Ruby's gem path.

What does which gem say?

[supermarin]

Just to confirm - are you sure you've did gem install bubble-wrap ?

[dlo]

@clayallsopp nope, not on purpose. I simply installed RubyMotion with the installer application. I didn't futz with the version I would be using.

@mneorr yep, just ran gem install bubble-wrap

[dlo]

Maybe this can be solved by running under RVM? None of the other commands fail when I do that though...

I.e., when I remove require 'bubble-wrap' from the Rakefile, rake runs perfectly and starts the app in a simulator.

[clayallsopp]

It seems like RubyMotion is using a version of Ruby/RubyGems that is different from what your normal gem command uses.

Check which ruby and which gem and see if they match up. Or try requiring any other non-standard gem which you know is installed and see if it also fails in the Rakefile.

But regardless, running everything under RVM/rbenv should solve that...

[dlo]

$ which ruby
/usr/bin/ruby
$ which gem
/usr/bin/gem

Further data:

$ ls -al /usr/bin/gem 
lrwxr-xr-x  1 root  wheel  71 Aug  6 14:12 /usr/bin/gem -> ../../System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/gem
$ ruby -v
ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin12.0]
$ ls -al /usr/bin/ruby
lrwxr-xr-x  1 root  wheel  76 Aug  6 14:13 /usr/bin/ruby -> ../../System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby

I'm not a ruby guy, so apologies if I'm missing something that should be obvious by now.

[dlo]

I don't really understand what I'm doing wrong. Is there some part of the installation that I failed to read? Pretty much my exact steps to get here were:

1. Download RubyMotion.
2. Install RubyMotion.
3. Start first project.
4. gem install bubble-wrap
5. Requiring BubbleWrap fails.

I haven't used Ruby on this computer at any point in the past. This is a factory install.

[clayallsopp]

Mmm I don't think the RubyMotion installer tries to account for RubyGems, as it's not strictly required to run RubyMotion =\ You should submit a new support ticket with the motion support command and request it, though.

What I guess is happening is Ruby is looking for your gems in /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems, but the gems command isn't installing them there.

• Try ls -al /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems and seeing if a bubble-wrap directory exists.
• Confirm that the output of gem list contains "bubble-wrap"
• Try running a vanilla instance of irb and executing require "bubble-wrap". If it fails, then it's a problem beyond just RubyMotion.

Can you paste the output of gem environment too? For comparison, mine:

$ gem environment
RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.23
  - RUBY VERSION: 1.9.3 (2012-04-20 patchlevel 194) [x86_64-darwin12.0.0]
  - INSTALLATION DIRECTORY: /Users/me/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1
  - RUBY EXECUTABLE: /Users/me/.rbenv/versions/1.9.3-p194/bin/ruby
  - EXECUTABLE DIRECTORY: /Users/me/.rbenv/versions/1.9.3-p194/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-darwin-12
  - GEM PATHS:
     - /Users/clayallsopp/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1
     - /Users/clayallsopp/.gem/ruby/1.9.1
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

Alternatively, installing RVM/rbenv + a fresh RubyGems should fix the problem.

[dlo]

Yeah, it does seem this is probably a problem with the RubyMotion installation itself.

Here's my gem environment:

RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.24
  - RUBY VERSION: 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin12.0]
  - INSTALLATION DIRECTORY: /usr/local
  - RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/local/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-darwin-12
  - GEM PATHS:
     - /usr/local
     - /Users/dan/.gem/ruby/1.8
     - /Library/Ruby/Gems/1.8
     - /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => false
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - "install" => "--no-rdoc --no-ri --no-doc"
     - "update" => "--no-rdoc --no-ri --no-doc"
     - "gem" => "--no-rdoc --no-ri --no-doc -n/usr/local/bin"
  - REMOTE SOURCES:
     - http://rubygems.org/

You might find this useful as well:

$ ls /usr/local/gems | grep bubble-wrap
bubble-wrap-1.1.4

Per other questions:

Try ls -al /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems and seeing if a bubble-wrap directory exists.

It does not. This is very strange. I also ran the following:

$ head -n1 /usr/bin/gem
#!/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby

Confirm that the output of gem list contains "bubble-wrap"

$ gem list --local | grep bubble-wrap
bubble-wrap (1.1.4)

Try running a vanilla instance of irb and executing require "bubble-wrap". If it fails, then it's a problem beyond just RubyMotion.

It fails, but I think it fails in the "good" way. :)

$ irb
irb(main):001:0> require 'bubble-wrap'
RuntimeError: This file must be required within a RubyMotion project Rakefile.
  from /usr/local/gems/bubble-wrap-1.1.4/lib/bubble-wrap/loader.rb:2
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'
  from /usr/local/gems/bubble-wrap-1.1.4/lib/bubble-wrap/core.rb:1
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:36:in `require'
  from /usr/local/gems/bubble-wrap-1.1.4/lib/bubble-wrap.rb:2
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:60:in `gem_original_require'
  from /Library/Ruby/Site/1.8/rubygems/custom_require.rb:60:in `require'
  from (irb):1

[dlo]

Just submitted a report to the RubyMotion team.

[Watson1978]

Looks like you are using Ruby18. When will use gem on Ruby18, we will require rubygems because it does not load automatically.

require 'motion/project'

require 'rubygems' # add
require 'bubble-wrap'

[dlo]

Thanks!