Switch to flux

[DallyJo]

I accidentally build my new Typo3 Page with flux and fluidcontent and unfortunatelly didn't read that fluidcontent is obsolte. Is there an easy way to remove fluidcontent from my current installation and switch to flux so it can "take over" as it is described in the documentation. What i've done since now:

• removed fluidcontent from dependencies in ext_emconf.php
• disabled fluidcontent in extension manager

All my existing content elements are showing an error like "Value is not allowed: "fluidcontent_content".