rake db:create with mysql on OS X 10.7 Lion fails

I'm trying t开发者_如何学Pythono install rvm, mysql and rails on a fresh OS X 10.7 installation. They all install correctly individually, but I can't seem to get them to work together.

When I try the command rake db:create, I get the following error:

db/test.sqlite3 already exists
db/test.sqlite3 already exists
rake aborted!
uninitialized constant Mysql::Error

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

• Mac OS X 10.7.0
• rvm 1.6.32
• Ruby 1.9.2
• MySQL 5.1.5.15
• Rails 3.0.9

I installed the mysql gem using the correct instructions. I added this to ~/.bash_profile:

export DYLD_LIBRARY_PATH="/usr/local/mysql/lib:$DYLD_LIBRARY_PATH"

I did this command:

env ARCHFLAGS="-arch x86_64" sudo gem install mysql -v='2.8.1' -- --with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib --with-mysql-include=/usr/local/mysql/include --with-mysql-config=/usr/local/mysql/bin/mysql_config

When I do gem list, I can see that version 2.8.1 of the mysql gem is installed. I've kinda run out of ideas now, any suggestions? Thanks.

database.yml:

development:
  adapter: mysql
  encoding: utf8
  reconnect: false
  database: terra_development
  pool: 5
  username: root
  password: root
  socket: /tmp/mysql.sock

---

thanks for the input, I managed to fix the problem. The problem was that rails couldn't connect with the server using the provided credentials. Because for some reason, there weren't any MySQL users, not even a root user. I ran this command:

/usr/local/mysql/bin/mysqladmin -u root password "root"

Which created a root user, let me connect to the server and fixed the problem!

---

The sqlite error is while creating the test database. You show the development section of your database.yml, so either your test section of database.yml specifies sqlite or you don't have a test database specified.