XLua Coroutine problem

Hi all. I'm trying to use coroutines in xlua similar to how zephni uses them in his normal lua extension tutorials on the daily click:

script = coroutine.create(runscript);

function pausescript()
coroutine.yield(script);
end

function resumescript()
coroutine.resume(script);
end

however, when I run the application xlua returns an invalid return request error, that goes away when I delete the coroutine.create action, and when i actually try to use pausescript() and resumescript() in functions, i get a really long error string. I am using xlua version 1.5.2 and latest update MMF2 developer. I really need coroutines for my application, is there something im doing wrong? I haven't had any problems coding with xlua up until this point...

i eliminated the coroutine.create problem by creating a function named runscript to use, but when i call script yields i still get an "attempt to yield across metamethod/c-call boundary" error...

hi retriever2, thank you for responding. I fixed my problem, but i had to go about it in a weird way:

instead of using an embedded script for the coroutine functions themselves, I had to write an external script and then load it into lua every time I wanted to use it. It's odd, but it worked

so it would appear coroutines do in fact work in xlua, only not in embedded scripts? (sorry for not making it clear that I was attempting to use them in embedded scripts in the OP, my bad)