Doctrine 2 Mapping Exception
===

I'm new to Doctrine 2, so I'm using the documentation on [docs.doctrine-project.org][1] as a template to get me started. I've generated all of the files I need (I think), and now I'm trying to run the command

    doctrine orm:schema-tool:create
but doctrine is spitting back

    [Doctrine\ORM\Mapping\MappingException]                                                          
    Invalid mapping file 'QueryRequest.dcm.xml' for class 'QueryRequest'.
Here's my **QueryRequest.dcm.xml** (I especially relied on a doctrine example from [these][2] docs to generate the file):

    <?xml version="1.0" encoding="UTF-8"?>
    <doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                          http://raw.github.com/doctrine/doctrine2/master/doctrine-mapping.xsd">

        <entity name="RequestMetadata" table="request_metadata">
            <id name="id" type="bigint">
                <generator strategy="AUTO" />
            </id>

            <field name="snapshot" column="snapshot" type="smallint" nullable="true" />
            <field name="custID" column="cust_id" type="string" length="8" />
            <field name="ipAddress" column="ip_addr" type="string" length="15" />
            <field name="query" column="query" type="string" length="500" />
            <field name="createdOn" column="created_on" type="datetime" />

            <one-to-many field="httpRequestResponses" target-entity="HttpRequestResponse" mapped-by="queryRequest">
                <cascade>
                    <cascade-persist />
                </cascade>
                <order-by>
                    <order-by-field name="createdOn" direction="DESC" />
                </order-by>
            </one-to-many>
            <one-to-many field="queryResults" target-entity="QueryResults" mapped-by="queryRequest">
                <cascade>
                    <cascade-persist />
                </cascade>
            </one-to-many>
        </entity>
    </doctrine-mapping>

Here's **QueryRequest.php**:

    class QueryRequest {
        protected $id;
        protected $snapshot;
        protected $custID;
        protected $ipAddress;
        protected $query;
        protected $createdOn;

        protected $httpRequestResponses = null;
        protected $queryResults = null;


        public function __construct() {
            $this->setCreatedOn(new DateTime("now"));
            $this->httpRequestResponses = new ArrayCollection();
            $this->queryResults = new ArrayCollection();
        }
        public function getID() {
            return $this->id;
        }
        public function getSnapshot() {
            return $this->snapshot;
        }
        public function setSnapshot($snapshot) {
            $this->snapshot = $snapshot;
        }
        public function getCustID() {
            return $this->custID;
        }
        public function setCustID($id) {
            $this->custID = $id;
        }
        public function getIpAddress() {
            return $this->ipAddress;
        }
        public function setIpAddress($ip) {
            $this->ipAddress = $ip;
        }
        public function getQuery() {
            return $this->query;
        }
        public function setQuery($query) {
            $this->query = $query;
        }
        public function getCreatedOn() {
            return $this->createdOn;
        }
        public function setCreatedOn($createdOn) {
            $this->createdOn = $createdOn;
        }
    }

Since I'm new I'm having trouble spotting the problem - in fact I don't even know for sure if the problem is with the xml file. Can anyone help me spot the problem?


  [1]: http://docs.doctrine-project.org
  [2]: http://docs.doctrine-project.org/en/latest/reference/xml-mapping.html#defining-fields