error :: “cmdmain.go:4:2: package my-gin-app/routes is not in std (C:Program FilesGosrcmy-gin-approutes)”

this my dilectory

• my-gin-app

1. cmd>main.go
2. routes>routes.go
3. controllers>user_controller.go

main.go

package main

import (
    "my-gin-app/routes"

    "github.com/gin-gonic/gin"
)

func main() {
    r := gin.Default()
    routes.SetupRoutes(r)
    r.Run(":8080")
}

routes.go

package routes

import (
    "my-gin-app/controllers"

    "github.com/gin-gonic/gin"
)

func SetupRoutes(r *gin.Engine) {
    r.GET("/ping", controllers.PingHandler)
}

go.mod

module my-gin-app

go 1.23.0

require github.com/gin-gonic/gin v1.10.0

error :: “cmdmain.go:4:2: package my-gin-app/routes is not in std (C:Program FilesGosrcmy-gin-approutes)”