无法参考我自己的包裹

I have created an interface as well as a struct, but every time I save my Go file, the compiler is formatting away my import statement and indicating that my struct is undefined.

I'm totally new to Go, so this probably seems obvious to someone. I've read the documentation.

Here's my file structure:

How do I properly reference a type I've created?

You have to qualify a name when it's coming from another package. Try models.HttpResult in the file on the left.