Forum Discussion
I don't have the Pets expansion and I use pretty much all of the most useful NRaas mods. Mosquito Cove was likely caused by the constrainfloorelevation cheat since I was testing around to see how it works and likely saved afterwards. I think I'll tweak the Sekemoto house and see how that works out.
@Hyerlobos Error 12 is an out of resources condition, usually but not always about memory. There's no way to allocate more RAM to a 32-bit application like Sims 3, although if your computer is already using most of its memory, freeing up enough to give the game 4 GB to work with can help.
It's worth checking whether your SV saves are in fact causing the game to hit the ~3.7 GB RAM limit, in case the issue is something else. You can put the game in windowed mode and alt-tab to the Task Manager to see.
CAS is more resource-intensive than live play, and since Sims 3 doesn't always release all the memory it initially allocates, spending a lot of time in CAS or frequently switching between it and live mode can be a problem. The same goes for Build and Buy modes to a lesser extent as well as Edit Town.