变速动作疑问

我用EaseBackInOut做变速震动动作,但是感觉震动幅度有点大,如何修改震动幅度?我用http://www.cocos2d-x.org/reference/native-cpp/V3.1rc0/dd/db0/classcocos2d_1_1_action_interval.html#a6d1199abcd7f83015cbe8c201691f48bsetAmplitudeRate ,但是会报错LUA ERROR: ASSERT FAILED ON LUA EXECUTE:
请问各位如何解决??

自顶,有哪位大侠知道,求解