新手问题 rake db:migrate 失败
hi， 我正在学习 http://guides.rubyonrails.org/getting_started.html 做到 生成表，翘命令 rake db:migrate，报错：
== CreatePosts: migrating ==================================================== -- create_table(:posts) rake aborted! An error has occurred, this and all later migrations canceled:
private method `String' called for #
Tasks: TOP => db:migrate (See full trace by running task with --trace)
不知什么原因？
class CreatePosts < ActiveRecord::Migration
def change
create_table :posts do |t|
t.String :name
t.String :title
t.text :content
t.timestamps
end
end
end
