Activerecord-PostgreSQL Adapter Error

Posted by Tian on Stack Overflow See other posts from Stack Overflow or by Tian
Published on 2010-06-15T20:55:04Z Indexed on 2010/06/16 4:22 UTC
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ruby-on-rails

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postgresql

When running "rake db:migrate", i receive the following error:

Please install the postgresql adapter: gem install activerecord-postgresql-adapter (dlopen(/Library/Ruby/Gems/1.8/gems/pg-0.9.0/lib/pg_ext.bundle, 9): no suitable image found. Did find: /Library/Ruby/Gems/1.8/gems/pg-0.9.0/lib/pg_ext.bundle: mach-o, but wrong architecture - /Library/Ruby/Gems/1.8/gems/pg-0.9.0/lib/pg_ext.bundle)

Postgres 8.4.4 installed using the pre-built image file.
Then ran sudo gem install pg to install pg-0.9.0
Config/database.yml:
development: adapter: postgresql

Does anyone know what the problem is?

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