Comment 2 for bug 1662857

I follow the github tutorial to get the source code for compiling as the follow command:
go get -d -v github.com/juju/juju/...

After a long term downloading and then got the error as below:

get "gopkg.in/goose.v1/swift": verifying non-authoritative meta tag
github.com/vmware/govmomi (download)
package github.com/juju/juju/cmd/juju
 imports context: unrecognized import path "context" (import path does not begin with hostname)