go - Gin 错误 : listen tcp: lookup addr on : no such host

Question

Machine : Debian 10 running on Windows 10 - Hypervisor 
Go Ver  : go1.14.4
Gin-gonic Version : v1.6.3

运行程序时出现错误!。尝试了许多在网上找到的解决方案，但没有运气(那些与 gin-gonic 没有直接关系)

$ go run main.go
[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.

[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
 - using env:   export GIN_MODE=release
 - using code:  gin.SetMode(gin.ReleaseMode)

[GIN-debug] Listening and serving HTTP on addr:8080
[GIN-debug] [ERROR] listen tcp: lookup addr on 192.168.43.1:53: no such host
Calling okay!!!

main程序调用函数 StartApplicaton在 application.go

    $ cat app/application.go
    package app

    import(  "fmt"
            "github.com/gin-gonic/gin"
    )

var (
        router = gin.Default()
)

//StartApplicaiton will call from main
func StartApplicaton() {
        mapUrls()
        router.Run("addr:8080")
        fmt.Println("Calling okay!!!")
}

其中 /etc/resolve.conf和 /etc/hosts文件供引用

$cat /etc/resolv.conf
nameserver 192.168.43.1
nameserver 8.8.8.8


$ cat /etc/hosts
127.0.0.1       localhost
127.0.1.1       debian
192.168.43.1    wifirtr #addded to check

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Answer 1

router.Run("addr:8080")改为router.Run(":8081")解决了我的问题!!,
仍然我不确定为什么它解决了我的问题(需要稍后挖掘)

编辑 : 后来发现addr部分不在代码中，它是 IDE 显示的帮助文本。我在学习在线教程时误解了。