Icinga Director import mysql dump

Hello i have installed a new Icinga2 and now i want to import my old director database into my new director. I symply used a dump an then an import into my new Director database. But now i have this Problem:

the old director was Version 1.6.0 and the new one ist 1.11.1
can anyone help me?

ok nvm i got it.
i simply droped the old database and reimported the new one and it seems to work now.