Error when upgrade Redmine from 0.8.2 to 2.0.1

I installed Redmine 2.0.1 on Windows Server 2008 R2. I could log in.

I then ran the following command with my backup script from version 0.8.2: mysql -u root -p bitnami_redmine < backup.sql After asking for my password it finished without any message.

Now when I try logging into the website I get an 'internal error' message.

Any ideas what to do? I tried running C:\Program Files\BitNami Redmine Stack\apps\redmine\htdocs>rake db:migrate RAILS_ENV=production

too and I get the popoup 'ruby.exe - can't start because core_rl_magick_.dll is missing from your computer' but the command window keeps running and later gives the error

== CreateMemberRoles: migrating ============================================== -- create_table(:member_roles) rake aborted! An error has occurred, all later migrations canceled:

Mysql::Error: Table 'member_roles' already exists: CREATE TABLE member_roles id int(11) DEFAULT NULL auto_increment PRIMARY KEY, member_id int(11) NOT N LL, role_id int(11) NOT NULL) ENGINE=InnoDB

Tasks: TOP => db:migrate (See full trace by running task with --trace)