Rake can't be found

hey i played around with bundler and some gems and now i can’t use rake anymore

if i do a simple db:migrate i get this error:

mac:app antpaw$ rake db:migrate
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:335:in `bin_path': can't find executable rake for rake-0.8.7 (Gem::Exception)
 from <internal:gem_prelude>:282:in `method_missing'
 from /usr/local/bin/rake:19:in `<main>'

but rake is listed if i do gem list. im using the rails 3.0.0beta4, bundler 1.0.0.beta.5, and ruby 1.9.2dev.

EDIT posted my export

mac:trickpipe antpaw$ export
declare -x Apple_PubSub_Socket_Render="/tmp/launch-2GMaKT/Render"
declare -x COMMAND_MODE="unix2003"
declare -x DISPLAY="/tmp/launch-5RguhF/:0"
declare -x HOME="/Users/antpaw"
declare -x LC_CTYPE="UTF-8"
declare -x LOGNAME="antpaw"
declare -x OLDPWD="/Users/antpaw"
declare -x PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/usr/X11/bin"
declare -x PWD="/Volumes/Work HD/localhost/trickpipe"
declare -x SHELL="/bin/bash"
declare -x SHLVL="1"
declare -x SSH_AUTH_SOCK="/tmp/launch-N13Ivn/Listeners"
declare -x TERM="xterm-color"
declare -x TERM_PROGRAM="Apple_Terminal"
declare -x TERM_PROGRAM_VERSION="272"
declare -x TMPDIR="/var/folders/-K/-Kf7svFPHrKmLqMXKAGLuU+++TI/-Tmp-/"
declare -x USER="antpaw"
declare -x __CF_USER_TEXT_ENCODING="0x1F5:0:0"
mac:trickpipe antpaw$ which ruby
mac:trickpipe antpaw$ ruby -v
ruby 1.9.2dev (2010-07-02 revision 28524) [x86_64-darwin10.2.0]

Ok i tried it out, look how the error msg is changing:

mac:trickpipe antpaw$ export GEM_HOME="/usr/local/lib/ruby/gems"
mac:trickpipe antpaw$ rake about
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:335:in `bin_path': can't find executable rake for rake-0.8.7 (Gem::Exception)
    from <internal:gem_prelude>:282:in `method_missing'
    from /usr/local/bin/rake:19:in `<main>'
mac:trickpipe antpaw$ export GEM_PATH="/usr/local/lib/ruby/gems"
mac:trickpipe antpaw$ rake about
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:779:in `report_activate_error': Could not find RubyGem rake (>= 0) (Gem::LoadError)
    from /usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:214:in `activate'
    from /usr/local/lib/ruby/site_ruby/1.9.1/rubygems.rb:1082:in `gem'
    from <internal:gem_prelude>:213:in `push_gem_version_on_load_path'
    from <internal:gem_prelude>:16:in `gem'
    from /usr/local/bin/rake:18:in `<main>'
mac:trickpipe antpaw$ 

now with rvm:

mac:trickpipe antpaw$ rake about
(in /Volumes/Work HD/localhost/rails_app)
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:30: warning: already initialized constant RAKEVERSION
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:402: warning: already initialized constant EMPTY_TASK_ARGS
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:450: warning: already initialized constant EMPTY
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:958: warning: already initialized constant RUBY_EXT
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:962: warning: already initialized constant RUBY
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1031: warning: already initialized constant LN_SUPPORTED
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1240: warning: already initialized constant ARRAY_METHODS
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1243: warning: already initialized constant MUST_DEFINE
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1247: warning: already initialized constant MUST_NOT_DEFINE
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1251: warning: already initialized constant SPECIAL_RETURN
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1257: warning: already initialized constant DELEGATING_METHODS
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1561: warning: already initialized constant DEFAULT_IGNORE_PATTERNS
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1567: warning: already initialized constant DEFAULT_IGNORE_PROCS
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1604: warning: already initialized constant FileList
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1630: warning: already initialized constant EARLY
/Users/antpaw/.rvm/rubies/ruby-1.9.2-rc2/lib/ruby/1.9.1/rake.rb:1960: warning: already initialized constant DEFAULT_RAKEFILES
DEPRECATION WARNING: Calling a method in Rails::Application is deprecated, please call it directly in your application constant Trickpipe::Application. (called from method_missing at /Users/antpaw/.rvm/gems/ruby-1.9.2-rc2/bundler/gems/rails-edb5401/railties/lib/rails/application.rb:77)
rake aborted!
stack level too deep

(See full trace by running task with --trace)

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    I’m pretty sure that you didn’t setup your path environment properly.
    is the default package folder of the RUby interpreter shipped with Mac OS X — crap. When you’re saying that you (assume to) use Ruby 1.9.2dev this path is wrong. Please drop export in the shell and post the result. Additionally please post you install-/pathes of Ruby 1.9.2dev and your bundled folder.

    Edit 1:

    Okay, quickfix for your issue: export GEM_HOME="/path/where/your/gems/reside" and optionally export GEM_PATH="/path/where/your/gems/reside" and optionally export PATH="/path/where/your/gems/reside:$PATH". Only in this order! Try one, when it still doesn’t work proceed with the next export.

    Note that this should fix your problem, but to make a Bundler environment work with rails f.e. you must change your Rails app’s config to explicitly use your custom BUndler gem environment. I read some time ago that Rails3 will include options for that; when this is the case (I dunno Rails3) check your those commands.

    P.s: Put Bundler aside and use RVM instead. It’s much more powerful, more mature and allows for far more flexibility (especially when dealing with multiple interpreters in conjunction with gemsets).

    Just an FYI if you used macports to install ruby 1.9.2 I had an issue like so:

    /opt/local/lib/ruby1.9/1.9.1/rubygems.rb:340:in `bin_path': can't find executable rake for rake-0.8.7 (Gem::Exception)
    from /opt/local/bin/rake:19:in `<main>'

    The fix is to go into /opt/local/lib/ruby1.9/gems/1.9.1/specifications and delete “rake.gemspec”

    That’s it… took forever to find that but, it worked fine

    I got the same problem with RVM ("warning: already initialized constant RAKEVERSION") and so on.

    I’m using a Gemset (“rails”) to do my dev, but I noticed that my BUNDLE_PATH was pointing not to this gemset (.rvm/gems/ruby-1.9.2-p0@rails); instead, it was pointing to the global one (.rvm/gems/ruby-1.9.2-p0).

    I fixed the BUNDLE_PATH to use the rails Gemset and rake is now correctly worked. Hope it helps.

    Ruby is the best programming language in the world - Ruby on Rails.