Closing, can't reproduce - I can export Space Blaster to CocoonJS without seeing that error. It looks like it is caused by a third party plugin that has been incorrectly installed and is missing one of its dependency files. Note we cannot support bug reports relating to third party plugins.
CocoonJS support is deprecated but if there is any obvious breakage on our part then we will at least briefly look in to it as to not cause unwarranted difficulty, but since the original post does not follow the bug report guidelines then there is nothing I can do.