After installing on magento 2.1.2 I see the button UB data migration lite in my backend. When I click on the button I go to the configuration page, but it is empty. I see only the text :
UB Data Migration Lite -- 1.0.6
How can I solve this problem?
Thanks for interest in our migration tool.
Actually the Lite version is mainly for testing purpose, it is available for Magento CE 2.0.7 only. It comes with limited feature sets and does not support Nginx as well.
In case you still wish to proceed a test migration with Lite version, please consider to proceed with Magento 2.0.7 again.
Anyway, I highly recommend you move forward with Pro version which is fully compatible with the latest Magento CE 2 and in particular, the codebase of the latest version V3.0.2 is completely revamped and has various new features (delta migration, command-line interface, php memcache support..). We did use this version ourself to help Winetasting.com – Migrate 382,047 customer entities to Magento 2 (https://www.ubertheme.com/magento2/case-study-winetasting-migrate-customer-entities-to-magento-2/)
PS. Here you can find two tutorial videos:
* Tutorial video for latest version — UB Data Migration Pro v3.0.2: https://youtu.be/R4UBLe2kf-I
* Tutorial video for old version, including current UB Data Migration Lite: https://youtu.be/Jvr8d3OeB8M
(Ax you can see via the two videos above, the workflow in Pro v3.0.2 is completely different from the Lite version)