gistfile1.txt

/Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates/adapters/dm-do-adapter.rb:70:in `included': undefined method `property_to_column_name' for class `DataMapper::Adapters::DataObjectsAdapter' (NameError)
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates/adapters/dm-do-adapter.rb:68:in `class_eval'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates/adapters/dm-do-adapter.rb:68:in `included'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates/adapters/dm-do-adapter.rb:5:in `include'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates/adapters/dm-do-adapter.rb:5:in `included'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates.rb:34:in `include'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates.rb:34:in `include_aggregate_api'
	from /Users/sindre/Code/iono/vendor/gems/bundler/gems/dm-aggregates-67e74c6ec3a6244a83d303b4d5fd8ebec9b8f303-master/lib/dm-aggregates.rb:23:in `block in include_aggregate_api'

I can't seem to reproduce this locally. Can you provide your Gemfile, and other information about your environment, like the framework, version of ruby,etc?

I just committed a change to dm-aggregates that hopefully fixes the problem:

http://github.com/datamapper/dm-aggregates/commit/b64f32b9ba2d7748ca51a309905116e7c206ef1b

If not, that's fine too -- removing AMC has been on my todo list for a while, so at least we've got cleaner code now :)