The selection of the «Products» value for the «Entity Type» dropdown on the backend «System» → «Export» screen leads to the exception: «Class Magento\Bundle\Model\Product\Attribute\Source\Price\Type does not exist»

The Magento\Bundle\Model\Product\Attribute\Source\Price\Type class is really absent both in the latest development and production (2.0.4) versions:


The failed attempt to instantiate the class is occured here:

The setup class does not set the source_model (source) property:

So I suggest that the Magento\Bundle\Model\Product\Attribute\Source\Price\Type values is a legacy from an old Magento 2 version.

How to fix:

UPDATE eav_attribute SET source_model = '' WHERE attribute_code in ('price_type', 'sku_type', 'weight_type');