Can't get 'go install' to work on OSX

I'm having a look at Go however i'm stuck at the very first hurdle. Whenever I run 'go install' I get the following error:

go install: no install location for directory /Users/jamie/Sites/gocode/src/jd/hello outside GOPATH

In all of the other posts I've seen about this it's usually because the user hasn't set a GOPATH or is trying to run go install outside of the GOPATH. I have set up my GOPATH and my code is in my GOPATH.

Here is my directory structure:

/Users/jamie/Sites/gocode
    /bin
    /src
        /jd
            /hello
                hello.go

I'm trying to run 'go install' from inside /Users/jamie/Sites/gocode/src/jd/hello. Here is my GOPATH:

$ echo $GOPATH
/Users/james/Sites/gocode

And finally here is hello.go:

package main

import "fmt"

func main() {
    fmt.Println("Hello there")
}

What am I doing wrong here?

Edit: go env:

$ go env
GOARCH="386"
GOBIN=""
GOCHAR="8"
GOEXE=""
GOHOSTARCH="386"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/james/Sites/gocode"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_386"
TERM="dumb"
CC="gcc"
GOGCCFLAGS="-g -O2 -fPIC -m32 -pthread -fno-common"
CXX="g++"
CGO_ENABLED="1"

Thanks!

Your GOPATH="/Users/james/Sites/gocode" wheras your code is in /Users/jamie/Sites/gocode/src/jd/hello

So set GOPATH=/Users/jamie/Sites/gocode and hopefully it will work fine.