Delta Migration Fails in Step 3

Hi Stefen,

I tried the solution presented here to no avail. Any ideas?

I couldn’t access the ‘here’ link you mentioned.

PHP Error[2]: Creating default object from empty value
    in file /srv/public_html/pub/ub-tool/protected/controllers/Step3Controller.php at line 591

To solve that issue, you can try with these steps:

+ Run the following SQL queries in your M2 database:

DELETE FROM ub_migrate_map_step_3 WHERE entity_name = 'eav_attribute_group' AND m2_id NOT IN (SELECT attribute_group_id FROM eav_attribute_group);
DELETE FROM ub_migrate_map_step_3_attribute WHERE entity_name = 'eav_attribute' AND m2_id NOT IN (SELECT attribute_id FROM eav_attribute);
DELETE FROM ub_migrate_map_step_3_attribute_option WHERE entity_name = 'eav_attribute_option' AND m2_id NOT IN (SELECT option_id FROM eav_attribute_option);

+ Once done, you can continue with the data migration in step #3:
php -f bin/ubdatamigration run --step=3

And let me know how it goes then.
 
Regards,
Mall.