Why modify the configuration file, recompile, or report the same error?

I have a beego project on my Mac:

Here is a configuration file MQ_ config.go :

const (
    mqHost = "109.196.82.110"
    mqPort = "61613"
...

I execute:

go build 
./generated_file    //execute the generated file

report errors:

2020/06/28 11:43:32.432 [I] [router.go:270]  /Users/dele/go/src/dpy/jhagent/controllers no changed
2020/06/28 11:43:32.483 [E] [proc.go:5420]  link active mq failed： dial tcp 109.196.82.110:61613: connect: connection refused

So I knew that was the reason for ActiveMQ, so I installed ActiveMQ on my Mac and changed MQ_ config.go File:

const (
    mqHost = "127.0.0.1"
    mqPort = "61613"
...

Delete the generated file, recompile, and run, but still report this error: Dial TCP 109.196.82.110:61613: Connect: connection reused error

I searched the whole project, only this configuration file has 109.196.82.110 IP. What's the reason for this error? Why is it still a problem to change the configuration file and recompile?