There are not any options for conversion at this time.
Did you get any answer? I still want creator works on ubuntu.
We do not support Linux.
After reading some comments I came to a conclusion that it will be difficult to add c++ support to Cocos Creator because it is a HTML app. Why don’t create a different Cocos Creator just for c++ and Lua I think this will be easier than trying to modify Cocos Creator to add support for c++ this is just my thoughts