Get 4.12 Asset into 4.15?

So I just bought an ancient city level pack but discovered that it doesn’t work in unreal Engine 4.15. Is there a way of porting/converting/nlackmailing the thing so i can get the pack into 4.15 because right now it feels like I wasted $60.

Did you try to open in 4.12 and migrate?

No. I’m fairly new to UE? I went back and saw a couple of people complaining aboit the compatibility so I thought it’s a once and done.
How do I migrate it?

Hey Word Lord!

To migrate an asset in 4.12 to 4.15:

  1. Open the project in 4.12
  2. Right click the folder containing the assets you wish to migrate in the content browser
  3. Click the migrate button near the bottom of the list.
  4. Browse to the content folder of the 4.15 project you wish to migrate to, and click ok.

You should see a message pop up in the lower right hand corner of your screen informing you that the migration was successful. The assets should now be in your 4.15 project.