So I have all my animations exported to JMAs, but when I try exporting tool says "model animation compressed at 0 bytes". When I look in my tags folder, there is nothing there.

Wrong directory. You just typed something wrong.
tool animations vehicles\car\animations
or, uh...
tool animations vehicles\car

I've tried everything to make sure I have the right location. Still nothing. Will tool even throw an error if there is anything wrong? Is there anyone nice enough to see if they can compile it?

do you have tool in your hce directory?

No, I just imagined that I had tool, and made this thread without actually attempting to compile.

You are assumed to have a folder containing another folder called "animations". In cmd you would type in "tool animation *folder*", with no quotes, where *folder* is the first one which contains the other folder called animations, not the one that actually contains your JMA files (which would be, in this case, "animations"). Oh, i really suck at explaining stuff. By the way "model animation compressed at 0 bytes" means, or it should mean that 0 bytes of the model_animation tag have been "compressed", thus you would expect that to come out even from a succesfull compile.

Thanks, that worked. Our brains must work the same way, because as jarbled as that sounded, it made perfect sense. :P

You're welcome. I'm glad it has made its sense; fun is I couldn't have explained it in another way :P