如果我有一个从云引擎获取到的AVACL对象,只要调用set方法
比如[self.acl setReadAccess:NO forUserId:userID];
就会报如图的错。
-[__NSSingleEntryDictionaryI removeObjectForKey:]: unrecognized selector sent to instance 0x610000038da0
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSSingleEntryDictionaryI removeObjectForKey:]: unrecognized selector sent to instance 0x610000038da0'
如果是新建一个AVACL,set就不会出错。