有没有人知道需要什么魔法咒语才能让Sinatra应用程序使用DataMapper在Heroku的竹堆上运行?Bamboo stack不包含任何预安装的系统gem,无论我尝试使用哪种gem组合,都会出现以下错误:
undefined method `auto_upgrade!' for DataMapper:Module (NoMethodError)
这就是我的生活
.gems
sinatra
pg
datamapper
do_postgres
dm-postgres-adapter
这些是我将应用程序推送到Heroku时安装的依赖项:
-----> Heroku receiving push
-----> Sinatra app detected
-----> Installing gem sinatra from http://rubygems.org
Successfully installed sinatra-1.0
1 gem installed
-----> Installing gem pg from http://rubygems.org
Building native extensions. This could take a while...
Successfully installed pg-0.9.0
1 gem installed
-----> Installing gem datamapper from http://rubygems.org
Successfully installed extlib-0.9.15
Successfully installed addressable-2.2.1
Successfully installed dm-core-1.0.2
Successfully installed dm-aggregates-1.0.2
Successfully installed dm-migrations-1.0.2
Successfully installed dm-constraints-1.0.2
Successfully installed dm-transactions-1.0.2
Successfully installed fastercsv-1.5.3
Successfully installed json_pure-1.4.6
Successfully installed dm-serializer-1.0.2
Successfully installed dm-timestamps-1.0.2
Successfully installed dm-validations-1.0.2
Successfully installed uuidtools-2.1.1
Successfully installed stringex-1.1.0
Successfully installed dm-types-1.0.2
Successfully installed datamapper-1.0.2
16 gems installed
-----> Installing gem do_postgres from http://rubygems.org
Building native extensions. This could take a while...
Successfully installed data_objects-0.10.2
Successfully installed do_postgres-0.10.2
2 gems installed
-----> Installing gem dm-postgres-adapter from http://rubygems.org
Successfully installed dm-do-adapter-1.0.2
Successfully installed dm-postgres-adapter-1.0.2
2 gems installed
