Error undefined methode 'interger' when make migrate : <h2>I'm building a database with Ruby, but when I tried to make a model (database table) a couple errors showed up, and I don't understand what is " in block in change" and "change". Here's the error.</h2>

<pre><code>&gt;C:\Users\MINH\Monika&gt;rake db:migrate
&gt;== 20161130153857 CreatePages: migrating ======================================
&gt;-- create_table(:pages)
&gt;rake aborted!
&gt;StandardError: An error has occurred, this and all later migrations canceled:

&gt;undefined method `interger' for #&gt;&lt;ActiveRecord::ConnectionAdapters::PostgreSQL::TableDefinition:0x58a4528&gt;
&gt;C:/Users/MINH/Monika/db/migrate/20161130153857_create_pages.rb:11:in `block in &gt;change'
&gt;C:/Users/MINH/Monika/db/migrate/20161130153857_create_pages.rb:3:in `change'
&gt;NoMethodError: undefined method `interger' for #&gt;&gt;&gt;..&lt;ActiveRecord::ConnectionAdapters::PostgreSQL::TableDefinition:0x58a4528&gt;
&gt;C:/Users/MINH/Monika/db/migrate/20161130153857_create_pages.rb:11:in `block in &gt;change'
&gt;C:/Users/MINH/Monika/db/migrate/20161130153857_create_pages.rb:3:in `change'
&gt;Tasks: TOP =&gt; db:migrate
&gt;(See full trace by running task with --trace)
</code></pre>

<hr>

<p>This is the migration</p>

<pre><code>&gt;class CreatePages &lt; ActiveRecord::Migration[5.0]
&gt;  def change
&gt;    create_table :pages do |t|
&gt;      t.string :name
&gt;      t.text :description
&gt;      t.text :address
&gt;      t.text :contact
&gt;      t.string :profile_image
&gt;      t.string :cover_image
&gt;      t.string :look_book
&gt;      t.interger :seller_id
&gt;
&gt;     t.timestamps 
&gt;    end
&gt;  end
&gt;end
</code></pre>
