[chef] community cookbooks fail after upgrade to chef11

[Kyle Sloan < >]

New to chef/ruby so this may be something rather silly that I'm missing

I am using vagrant with berkshelf to work with testing cookbooks.  They all 
work with the default vagrant box http://files.vagrantup.com/precise32.box, ;
which is running chef10

When I upgrade the chef version on the vagrant box with gem to 11.4.4, the 
cookbooks start to fail.  I upgrade/do nothing else on the box but the gem 
update and then try vagrant reload.

Two of the books failing are community cookbooks -- tmux and ack, which are 
fairly basic.
https://github.com/opscode-cookbooks/tmux
https://github.com/cap10morgan/ack-cookbook

For tmux, I'm getting this error:
FATAL: NoMethodError: undefined method `[]' for nil:NilClass

The ack one is very similar

When I replace the recipe/default.rb with hard values instead of variables, 
everything works, so its almost like the attributes aren't being passed in?  
I am including the recipe from my "application cookbook" (maybe I need to set 
all the attributes in my application cookbook as include_recipe doesn't pull 
these? But it worked in chef10?)


from my_app_cookbook/recipes/default.rb

# none of these should require parameters/attributes, take the defaults
include_recipe "ack"
include_recipe "tmux"


Sorry this isn't much to go on, but can someone confirm that tmux/ack are 
working for on chef11, or point me in a direction?