About CCUserDefault,how to delete what I keep by CCUserDefault::setStringForKey?

cocos2d-x C++
#1

I use CCUserDefault::setStringForKey() to keep some string as follow, it work well.
CCUserDefault::sharedUserDefault()->setStringForKey(“juese1”, save);

But when I try to delete these string , I don’t know how to achieve . So I’m trying to delete string as follow,it work well on win32.debug but it always go wrong on android phone.
CCUserDefault::sharedUserDefault()->setStringForKey(“juese1”, “”);

How can I delete this data safety?

#2

Yeap, #1088 was created for the bug about the issue of passing “” to setStringForKey.