After having made a working "Hello World" module, I tried to make my first magento 2 real module. The goal is to add a new product type. Using several tutorials, I did :


<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Mine_Custproducttype" schema_version="2.0.0">
            <module name="Magento_Catalog"/>


<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Catalog:etc/product_types.xsd">
    <type name="pcbproto" label="PCB Prototype" modelInstance="Mine\Custproducttype\Model\Product\Type\Pcbproto" indexPriority="10" sortOrder="25">
            <attribute name="refundable" value="true"/>
            <attribute name="taxable" value="true"/>
        <type name="pcbproto" />



namespace Mine\Custproducttype\Model\Product\Type;

class Pcbproto extends \Magento\Catalog\Model\Product\Type\AbstractType
     * Product type code
    const TYPE_CODE = 'pcbproto';

     * Delete data specific for Simple product type
     * @param \Magento\Catalog\Model\Product $product
     * @return void
    public function deleteTypeSpecificData(\Magento\Catalog\Model\Product $product)



When I add my module to the magento2 app/code directory all magento commands stop working (ex : php bin/magento module:status) and give an error :

There are no commands defined in the "module" namespace.

Removing the module and is starts working again.

Thank you for your help,

  • Can you create composer.json file for your extension and then try. – Dhiren Vasoya Oct 27 '16 at 10:06
  • what is the composer.json for? – Alexglvr Oct 28 '16 at 7:41

schema_version is not valid in a module.xml file anymore.

I don't remember in which version it happened but it has been replaced with setup_version

So you need to replace the following in your module.xml :

<module name="Mine_Custproducttype" schema_version="2.0.0">


<module name="Mine_Custproducttype" setup_version="2.0.0">

Then you can run:

php -f bin/magento module:enable --clear-static-content Mine_Custproducttype
php -f bin/magento setup:upgrade
  • I was asked to recompile magento2. I then did it. All pages are blank now...I then disable the module. blank pages. Recompile magento again : the same. delete the module files, recompile, flush cash : still the same... – Alexglvr Oct 28 '16 at 7:55
  • 1
    It was due to owner / rights problems... www-data / 777 works – Alexglvr Oct 28 '16 at 8:13
  • @Alexglvr sweet yeah permissions are causing problems very often, glad you worked it out. – Raphael at Digital Pianism Oct 28 '16 at 8:13

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