物理引擎警告，这个警告为什么产生的

Cocos2d-x
#1

Chipmunk warning: High GJK iterations: 31
Failed condition: iteration < WARN_GJK_ITERATIONS
Source:e:\projects\chipmunk\chipmunk-7.0.1\chipmunk-7.0.1\src\cpcollision.c:358