Trac 이관이 안되네요.. 도움 부탁드려요~

이 정림이(가) 2015-01-21에 추가

Trac 이관하는데 아래 그림과 같은 오류가 납니다.
구글링해서 이것저것 설치해봤는데도 안되서 문의드립니다.ㅜㅡ

Trac v1.0
Redmine v2.6.0

아래는 이관 에러 화면입니다.

C:2.6.0-3\apps\redmine\htdocs>rake redmine:migrate_from_trac RAILS_ENV=“production”
WARNING: a new project will be added to Redmine during this process.
Are you sure you want to continue ? y
Trac directory :
Trac database encoding :
Target project identifier Y
rake aborted!
LoadError: Please install the sqlite3 adapter: `gem install activerecord-sqlite3-adapter`
C:/Bitnami/redmine-2.6.0-3/apps/redmine/htdocs/lib/tasks/migrate_from_trac.rake:713:in `block in establish_connection’
C:/Bitnami/redmine-2.6.0-3/apps/redmine/htdocs/lib/tasks/migrate_from_trac.rake:710:in `each’
C:/Bitnami/redmine-2.6.0-3/apps/redmine/htdocs/lib/tasks/migrate_from_trac.rake:710:in `establish_connection’
C:/Bitnami/redmine-2.6.0-3/apps/redmine/htdocs/lib/tasks/migrate_from_trac.rake:375:in `migrate’
C:/Bitnami/redmine-2.6.0-3/apps/redmine/htdocs/lib/tasks/migrate_from_trac.rake:776:in `block in ’
Tasks: TOP => redmine:migrate_from_trac

C:2.6.0-3\apps\redmine\htdocs>gem install activerecord-sqlite3-adapter
ERROR: Could not find a valid gem ‘activerecord-sqlite3-adapter’ (>= 0) in any repository
ERROR: Possible alternatives: activerecord-jdbcsqlite3-adapter, activerecord-sqlserver-adapter, activerecord-hive-adapter, activerecord-crate-adapter, activerecord-mysql2-adapter