I installed successfully Magento 2.1.2 CE. Now I would like to migrate my old Magento 220.127.116.11 to this new version but I got an error during migration process.
It completes correctly the settings migration, but when I start data migration I got the error belo on EAV step:
SQLSTATE: Integrity constraint violation: 1062 Duplicate entry '1-Migration_Default' for key 'EAV_ATTRIBUTE_SET_ENTITY_TYPE
Could you help me o understand what's wrong please?
I tried to start from scratch the migration reinstalling Magento, but I'm stuck on a little different error:
Integrity constraint violation: 1062 Duplicate entry '17-139' for key 'EAV_ENTITY_ATTRIBUTE_ATTRIBUTE_SET_ID_ATTRIBUTE_ID'
I checked the eat_entity_attribute table on Magento 18.104.22.168 database, but I cannot see the key 17 attribute_set_id and 139 on attribute_id so I cannot figure out what's wrong here.. :-(
Any help is really appreciated.. Thank you!