Using a custom struct as a type in another struct in Go not building

I have the following dir structure:

github.com
    meee
      projectA
        foo
         foo.go
        bar
         bar.go

In foo.go:

package foo

import(
  "github.com/meee/projectA/bar"
)
type Foo struct {
  Name string
  Bars []Bar
}

In bar.go:

package bar

type Bar struct {
  Name string
}

This will not compile/build, the error I get is:

undefined: Bar

Since I have it imported, I do not know why it will not compile.

If you import fmt, you cannot call Println directly. You must call fmt.Println instead; otherwise, you get the undefined: Println error.

It's the same for your bar package. This should work now:

type Foo struct {
    Name string
    Bars []bar.Bar
}