不能将上下文用作“ handlerfunc” gin-gonic类型

This has been bugging me for a long time. I'm using gin-gonic and everytime I try and use go run main.go, this compile error always appears:

cannot use properties.Pong (type func(*"github.com/carlqt/geodude/vendor/github.com/gin-gonic/gin".Context)) as type "github.com/gin-gonic/gin".HandlerFunc in argument to router.RouterGroup.GET

But when I use Visual Studio Code terminal and run the go run, it works.

here's the main.go file https://gist.github.com/carlqt/c5f6b0d127c1ca124cf2fe8d620976a1

And here's the property.go file: https://gist.github.com/carlqt/6edadf1dedc63b4b4e231891cae8e9a5

My project structure looks like this

Edit Adding go env for the terminal in VS Code and my terminal. I will put them on screenshot as to avoid human error

VS Code terminal:

iterm2 Terminal:

Note The issue can be avoided, as well, if I put the HandlerFunc functions from the properties folder to main.go file.

OK, sorry about all this mess but what worked for me is to uninstall Go and reinstall it again. Previously, Go was installed on my machine using Homebrew. When I reinstalled it, I used google's mac installer. Now all was fine again.

Thanks for helping.

go get -u github.com/gin-gonic/gin
govendor add +e