Got this error after upgrading to rack 1.2.1, problem solved by
rolling back to rack 1.1.0.
(Ruby 1.8.6)
$ heroku db:pull
/Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/rack-1.2.1/lib/rack/
utils.rb:138:in `union': can't convert Array into String (TypeError)
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/rack-1.2.1/lib/rack/
utils.rb:138
from /Users/dean/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/site_ruby/1.8/
rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/dean/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/site_ruby/1.8/
rubygems/custom_require.rb:31:in `require'
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/taps-0.3.9/lib/taps/
multipart.rb:2
from /Users/dean/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/site_ruby/1.8/
rubygems/custom_require.rb:31:in `gem_original_require'
from /Users/dean/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/site_ruby/1.8/
rubygems/custom_require.rb:31:in `require'
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/taps-0.3.9/lib/taps/
data_stream.rb:2
from /Users/dean/.rvm/rubies/ruby-1.8.6-p399/lib/ruby/site_ruby/1.8/
rubygems/custom_require.rb:31:in `gem_original_require'
... 8 levels...
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/heroku-1.9.10/lib/
heroku/command.rb:20:in `run'
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/gems/heroku-1.9.10/bin/
heroku:13
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/bin/heroku:19:in `load'
from /Users/dean/.rvm/gems/ruby-1.8.6-p399/bin/heroku:19
--
You received this message because you are subscribed to the Google Groups
"Heroku" group.
To post to this group, send email to her...@googlegroups.com.
To unsubscribe from this group, send email to
heroku+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/heroku?hl=en.
