b2 conversion issues

I get to step 2 and it says
Database error: [Duplicate column name ‘post_excerpt’]
ALTER TABLE wordpress_posts ADD COLUMN post_excerpt text NOT NULL;
Database error: [Duplicate column name ‘post_status’]
ALTER TABLE wordpress_posts ADD post_status ENUM(‘publish’,’draft’,’private’) NOT NULL, ADD comment_status ENUM(‘open’,’closed’) NOT NULL, ADD ping_status ENUM(‘open’,’closed’) NOT NULL, ADD post_password varchar(20) NOT NULL;
That went well! Now let’s clean up the b2 database structure a bit…
Database error: [Can’t DROP ‘ID’. Check that column/key exists]
ALTER TABLE wordpress_posts DROP INDEX ID
One down, two to go…
Database error: [Table ‘scamcity.wordpress_settings’ doesn’t exist]
ALTER TABLE wordpress_settings DROP INDEX ID
So far so good.
Database error: [Can’t DROP ‘post_karma’. Check that column/key exists]
ALTER TABLE wordpress_posts DROP post_karma
Almost there…
Database error: [Can’t DROP ‘ID’. Check that column/key exists]
ALTER TABLE wordpress_users DROP INDEX ID
Welcome to the family. Have fun!
What am I doing wrong?