Allowed memory size exhausted using Toolkit

[metafaniel]

I'm trying to Create a new class of CIsusing the XML Data Model Reference and the Toolkit. I've been testing my datamodel.my-module.xml and testing every change with the Toolkit. I haven't had any problems wqith this until now. Now I get the following PHP error:

Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 130968 bytes) in C:\Apache24\htdocs\iTop-2.1.0-beta\core\metamodel.class.php on line 838

I've already tried to increase the memory_limit in php.ini; I have it now at 1024M. I have other configuration values as follows:
post_max_size = 512M
upload_max_filesize = 256M
max_file_uploads = 20

I'm still gettin the same error, thus I can't test my module with the Toolkit.
What can I do? Can somebody help me please?

THANKS

Environment > Windows 9, Apache 2.4.9, PHP 5.5.14, MySQL 5.6.19, installed manually (No WAMP, XAMP or similar)This is my development environment.
Thanks for the help

[metafaniel]

Following the PHP and MySQL settings guidelines I changed my configuration to the following:

upload_max_filesize = 128M
post_max_size = 256M
max_allowed_packet=512M
memory_limit = 1024M

But my real problem was in a field node in the XML I'm working. I had the node the following way:

    <field id="model_name" xsi:type="AttributeExternalField">
      <extkey_attcode>model_name</extkey_attcode>
      <target_attcode>name</target_attcode>
    </field>

The "extkey_attcode" was pointing to this same field, creating a loop maybe? So I changed the node to this:

    <extkey_attcode>model_id</extkey_attcode>

The error the Toolkit was showing to me, wasn't very clear at all. Thanks anyway