cocos2dx-3.0rc setup ant_root fail

when i setup the android environment on mac,when i setup the ant_root,it always remind Error: “/usr/local/bin/ant” is not a valid path of ANT_ROOT. Ignoring it.
i’m use “which ant” command,then terminal show me “/usr/local/bin/ant”
what the hell wrong happened?help……

You should remove ‘ant’ from ANT_ROOT. Such as “/usr/local/bin”.