: ‘Buffer’ is not a member of ‘muduo::net’？

[sychen12345]

陈硕大佬，请问一下，
using namespace muduo;
using namespace muduo::net;
muduo::net::Buffer *buf;
// Buffer *buf;
muduo::StringPiece s("buf\n");

    buf->append(s);

我这样使用muduo的buffer好像你书上也是这样写的，为什么会报错呢
error: ‘Buffer’ is not a member of ‘muduo::net’
muduo::net::Buffer *buf;

     muduo::net::Buffer *buf;

[chenshuo]

Did you

#include "muduo/net/Buffer.h"

?