获取不到本地会话

NSArray *conversations = [[EMClient sharedClient].chatManager getAllConversations];
    for (EMConversation *conversation in conversations) {
        NSLog(@"conversation.conversationId===%@",conversation.conversationId);
    }
或
NSArray *conversations =
[[EMClient sharedClient].chatManager loadAllConversationsFromDB];
    for (EMConversation *conversation in conversations) {
        NSLog(@"conversation.conversationId===%@",conversation.conversationId);
    }
打印如果没有，说明您本地没有会话记录