为什么没有创建味精队列

正在学习消息队列，编写了代码以创建消息队列

#include <stdio.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <stdlib.h>
#include <errno.h>

int main()
{
    key_t key;
    int msgid;

    key = ftok("proj", 64);
    if (key == -1) {
        perror("ftok failed");
        exit(1);
    }
    printf("key:%x\n", key);
    //IPC_CREAT: creating message queue if not exists
    msgid = msgget(key, IPC_CREAT);
    if (msgid == -1) {
        perror("msgget failed");
        printf("errno:%d\n", errno);
        if (errno == ENOENT)
            printf("No message queue exists for key and msgflg did not specify IPC_CREAT\n");
        exit(2);
    }
    printf("msgid:%x\n", msgid);


    return 0;
}

运行命令未显示输出：ipcs -q

panther2@ubuntu:~/c_codes/msg_queue$ ipcs -q

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages

你们能告诉我我是否犯错了