title: What should be the values of GOPATH and GOROOT?
body: <p>I'm trying to install <a href="https://github.com/ha/doozer" rel="noreferrer">doozer</a> like this:</p>
  
  <pre><code>$ goinstall github.com/ha/doozer
  </code></pre>
  
  <p>I get these errors. </p>
  
  <blockquote>
  <pre><code>goinstall: os: go/build: package could not be found locally
  goinstall: fmt: go/build: package could not be found locally
  goinstall: io: go/build: package could not be found locally
  goinstall: reflect: go/build: package could not be found locally
  goinstall: math: go/build: package could not be found locally
  goinstall: rand: go/build: package could not be found locally
  goinstall: url: go/build: package could not be found locally
  goinstall: net: go/build: package could not be found locally
  goinstall: sync: go/build: package could not be found locally
  goinstall: runtime: go/build: package could not be found locally
  goinstall: strings: go/build: package could not be found locally
  goinstall: sort: go/build: package could not be found locally
  goinstall: strconv: go/build: package could not be found locally
  goinstall: bytes: go/build: package could not be found locally
  goinstall: log: go/build: package could not be found locally
  goinstall: encoding/binary: go/build: package could not be found locally
  </code></pre>
  </blockquote>