PG ::错误：错误：列schema_migrations.version不存在

Question

我根据以下说明安装了CartoDB：http://cartodb.readthedocs.io/en/latest/install.html

当我跑步时：

RAILS_ENV=development bundle exec rake db:migrate

我收到了下一个错误：

PG::Error: ERROR:  column schema_migrations.version does not exist
LINE 1: SELECT "schema_migrations"."version" FROM "schema_migrations...
               ^
: SELECT "schema_migrations"."version" FROM "schema_migrations" 
rake aborted!
Multiple migrations have the name CreateLdapConfiguration

知道怎么解决吗？