'rake assets: precompile' giving me errors in development and production

'rake assets: precompile' giving me errors in development and production

Whenever I try to deploy my app with cap production deploy:migrations I
get an error message along the lines:
* executing "ln -nfs
/var/www/apps/myapp/releases/20130802221024/config/configs/resque_schedule.yml
/var/www/apps/myapp/releases/20130802221024/config/resque_schedule.yml"
servers: ["12.34.567.8"]
[12.34.567.8] executing command
command finished in 550ms
triggering after callbacks for `deploy:update_code'
* executing `deploy:assets:precompile'
* executing "cd /var/www/apps/myapp/releases/20130802221024 && bundle
exec rake RAILS_ENV=production RAILS_GROUPS=assets assets:precompile"
servers: ["12.34.567.8"]
[12.34.567.8] executing command
** [out :: 12.34.567.8] rake aborted!
** [out :: 12.34.567.8] Received wrong number of arguments. [nil]
** [out :: 12.34.567.8]
/var/www/apps/myapp/shared/bundle/ruby/1.8/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:136:in
`initialize'
** [out :: 12.34.567.8]
/var/www/apps/myapp/shared/bundle/ruby/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in
`new'
** [out :: 12.34.567.8]
/var/www/apps/myapp/shared/bundle/ruby/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in
`build'
I had been believed there was some configuration issue with my server, or
some missing dependency files. But on my local Ubuntu when I run in
terminal:
bundle exec rake assets:precompile --trace
I get:
mycompaq@ubuntu:~/myapp_back_ups/myapp-first version August 2012/myapp_v1$
bundle exec rake assets:precompile --trace
DEPRECATION WARNING: require "activerecord" is deprecated and will be
removed in Rails 3. Use require "active_record" instead. (called from
/usr/lib/ruby/vendor_ruby/activerecord.rb:2)
** Invoke assets:precompile (first_time)
** Execute assets:precompile
/usr/bin/ruby1.8 /usr/local/bin/rake assets:precompile:all
RAILS_ENV=production RAILS_GROUPS=assets --trace
DEPRECATION WARNING: require "activerecord" is deprecated and will be
removed in Rails 3. Use require "active_record" instead. (called from
/usr/lib/ruby/vendor_ruby/activerecord.rb:2)
** Invoke assets:precompile:all (first_time)
** Execute assets:precompile:all
** Invoke assets:precompile:primary (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
rake aborted!
Received wrong number of arguments. [nil]
/var/lib/gems/1.8/gems/omniauth-1.1.0/lib/omniauth/strategy.rb:136:in
`initialize'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in
`new'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:43:in
`build'
/var/lib/gems/1.8/gems/actionpack-3.2.3/lib/action_dispatch/middleware/stack.rb:113:in
`build'
etc...etc...
which is pretty much the same bunch of error messages.
Whats more, I have the same problem with all the back ups of my app - even
though I haven't touched any of the code. I'd obviously conclude that
something has changed in my core var/lib/gems folder, but there's nothing
I've changed in there either.
Can anyone solve my problem, let me know where to start looking, or even
tell me what's happening? Thanks.