Stabyourself.net forum

I tried to select a new mappack I made but I keep getting this error screen.

you made a mappack with entities from another mod and them tried to play the mappack with the normal version of mari0. go to the mod which you use an test the mappack in there , , if you want you can delete the entities from the mari0 mod , and save it, by that;s way you will be able to play the mappack with the normal version of mari0 :)

@smp2 he said nothing about mods.

can you possible give us anymore information on how this error might have occured?
If not then try copying the settings file of another map pack into the map pack folder that you're trying to open.

Hope that helps.

...

I have no mods installed and It was a fresh mappack. It started with one normal mappack so I made another one but It still wont work. I have a Tileset but even without it It still wont work.

Edit: I did what renhoek told me to do and It works fine now. Thanks.