Data migration tool error during data conversion

[LeoBurchi]

Hello all,

I installed successfully Magento 2.1.2 CE. Now I would like to migrate my old Magento 1.7.0.2 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:

[PDOException]                                                                                                                      

  SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '1-Migration_Default' for key 'EAV_ATTRIBUTE_SET_ENTITY_TYPE  

  _ID_ATTRIBUTE_SET_NAME'

Could you help me o understand what's wrong please?

Thank you!

[LeoBurchi]

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 1.7.0.2 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!

[TuanBQ]

You need upgrade M1 to the 1.9.x first then from 1.9.x you can use Data migration tool to migrate to M2.

Thanks,

Tuan

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