cocoonjs and construct 2 warnings

then im playing game on my iphone i get warnings from cocoonjs launcher

"-not found getElementById: c2canvasdiv" what is this?

Does the game work correctly? If so it's probably nothing to worry about.

cocoonjs launcher demo "box2d" im using 60object and fps is 50, then i export from construct i cant use 20obj because fps drop to 20:/ how its impossible construct using box2d to i dont get it...

That's because our demo uses our native Box2D binding, while Construct exports don't (yet), so your exports don't get the performance improvements our binding can deliver.

The Box2D binding is not yet complete, and until then it doesn't make much sense for the Scirra guys to use it in Construct, as some features would just not work on CocoonJS.

As soon as our Box2D binding is able to everything Construct needs, integration will be a matter of minutes :)

thanks guys ;)