This might be related to the sims, but this also involves the game "Spore"

I play Sims 2 and Spore. Since i was creating a new clothing mesh for Sims 2 on SimPE, the problem never happen then because i didn't have spore then. But when i got spore and when i was doing a new sims 2 clothing mesh, a pop-up window apears and says,"SimPE is a sims 2 package editor. SimPE does not support Spore Packages."

this is a really big issue for me, can you help me out please?