food-rescue-robot 'rake db:migrate' failure

gistfile1.txt

==  InitRegionInLocations: migrating ==========================================
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

undefined method `acts_as_gmappable' for #<Class:0x00000003e0b188>/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/dynamic_matchers.rb:55:in
 `method_missing'
/home/paul/dev/food-rescue-robot/app/models/location.rb:4:in `<class:Location>'
/home/paul/dev/food-rescue-robot/app/models/location.rb:1:in `<top (required)>'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:469:in `load'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:469:in `block in load_file'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:639:in `new_constants_in'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:468:in `load_file'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:353:in `require_or_load'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:502:in `load_missing_constant'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:192:in `block in const_missing'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:190:in `each'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:190:in `const_missing'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:514:in `load_missing_constant'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:192:in `block in const_missing'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:190:in `each'
/var/lib/gems/1.9.1/gems/activesupport-3.2.17/lib/active_support/dependencies.rb:190:in `const_missing'
/home/paul/dev/food-rescue-robot/db/migrate/20120710214118_init_region_in_locations.rb:4:in `up'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:410:in `block (2 levels) in migrate'
/usr/lib/ruby/1.9.1/benchmark.rb:280:in `measure'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:410:in `block in migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/connection_adapters/abstract/connection_pool.rb:129:in `with_connection'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:389:in `migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:528:in `migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:720:in `block (2 levels) in migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:775:in `call'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:775:in `block in ddl_transaction'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/transactions.rb:208:in `transaction'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:775:in `ddl_transaction'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:719:in `block in migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:700:in `each'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:700:in `migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:570:in `up'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/migration.rb:551:in `migrate'
/var/lib/gems/1.9.1/gems/activerecord-3.2.17/lib/active_record/railties/databases.rake:193:in `block (2 levels) in <top (required)>'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:240:in `call'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:240:in `block in execute'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:235:in `each'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:235:in `execute'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/usr/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/task.rb:165:in `invoke'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:150:in `invoke_task'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:106:in `each'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:106:in `block in top_level'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:115:in `run_with_threads'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:100:in `top_level'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:78:in `block in run'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:176:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.2.2/lib/rake/application.rb:75:in `run'
/var/lib/gems/1.9.1/gems/rake-10.2.2/bin/rake:33:in `<top (required)>'
/usr/local/bin/rake:23:in `load'
/usr/local/bin/rake:23:in `<main>'
Tasks: TOP => db:migrate