Hi!
I tried to implement Flag migration from 6.x to 8.x
i used entity:flagging as destination plugin, and custom source plugin (based on DrupalSqlBase).
When i try to run "drush mi...", i get the error: Error: Call to a member function id() on null in /home/vagrant/test/docroot/modules/contrib/flag/src/FlagCountManager.php, line 160
I tried to debug the values - they looks fine before insertion to DB, but on "after save" step i get this error and it causes transaction rollback.
Maybe, anyone knows what is the cause of this bug? And how to solve it?
Thanks!
Closed: cannot reproduce
4.0
Flag core
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