Inserting into a simple Postgres view

Postgres documentation says

Simple views are automatically updated: the system allows INSERT, UPDATE, and DELETE statements to be used in a view just as in a regular table.

He then lists a number of requirements. I believe my view meets all of these requirements, but if I try to insert into this view, I get an error:

psql:C355A12.txt:1702: ERROR:  cannot insert into a view
HINT:  You need an unconditional ON INSERT DO INSTEAD rule.

      

        
        
        
      

    

The view I am inserting is defined as:

CREATE VIEW locationsView
    AS SELECT lc_name, lc_min, lc_max, lc_sizeX, lc_sizeY
    FROM locations;

      

        
        
        
      

    

This is the table definition:

CREATE TABLE locations(
    lc_name LocationName NOT NULL,
    lc_min LocationMin NOT NULL
        DEFAULT 0,
    lc_max LocationMax NOT NULL
        DEFAULT 0,
    lc_sizeX LocationSizeX NOT NULL,
    lc_sizeY LocationSizeY NOT NULL,
    PRIMARY KEY (lc_name)
);

      

        
        
        
      

    

Domains used:

CREATE DOMAIN LocationName AS TEXT;
CREATE DOMAIN LocationMin AS INT;
CREATE DOMAIN LocationMax AS INT;
CREATE DOMAIN LocationSizeX As INT;
CREATE DOMAIN LocationSizeY As INT;

      

        
        
        
      

    

How can I get this "automatically updated" information described in the documentation?

I am using Postgres version 9.3.4.