Rails 3 + Postgre + incompatible character encodings: ASCII-8BIT and UTF-8

Hi friends! I'm having problems to load some data in a Postgresql database using "rake db:seed".

/work/arzamas1$ rake db:seed (in /home/luiz/work/arzamas1) rake aborted! incompatible character encodings: ASCII-8BIT and UTF-8

The database was created with these parameters: CREATE DATABASE arzamas1   WITH OWNER = postgres        ENCODING = 'UTF8'        TABLESPACE = pg_default        LC_COLLATE = 'pt_BR.utf8'        LC_CTYPE = 'pt_BR.utf8'        CONNECTION LIMIT = -1;

This is my database.yml: development:   adapter: postgresql   encoding: utf8   database: arzamas1   username: postgres   password: postgres

This is my gemfile: source 'http://rubygems.org' gem 'rails', '3.0.3' gem 'pg' <---- (0.10.1) gem 'jquery-rails' group :development do   gem 'rspec-rails'   gem 'annotate-models' end

The classes related with the problem have the following definition (I suppressed some parameters for legibility):

try this on the top of you seed.rb:

# -*- coding: utf-8 -*-

Hmmm, I tried but didn't worked. Thanks for reply!