在构建时无法在golang中找到包“ github.com/user../../”

Question

I am trying to build a project from github source code. I have found some source code importing a package something like below:

import (
    "os"

    "github.com/bivas/rivi/commands"
    "github.com/mitchellh/cli"
)

However, while building a project every time it throws an error:

user-MacBook-Pro:rivi user$ go build rivi.go
rivi.go:6:2: cannot find package "github.com/bivas/rivi/commands" in any of:
        /usr/local/Cellar/go/1.7.5/libexec/src/github.com/bivas/rivi/commands (from $GOROOT)
        ($GOPATH not set)
rivi.go:8:2: cannot find package "github.com/mitchellh/cli" in any of:
        /usr/local/Cellar/go/1.7.5/libexec/src/github.com/mitchellh/cli (from $GOROOT)
        ($GOPATH not set)

how to build this project. Currently I am trying to build this one project into my system.

EDITED:

After running this command go install or go get:

package github.com/bivas/rivi/commands: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/connectors/github: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/autoassign: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/automerge: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/commenter: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/labeler: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/locker: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/sizing: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/slack: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/status: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/bivas/rivi/engine/actions/trigger: cannot download, $GOPATH not set. For more details see: go help gopath
package github.com/mitchellh/cli: cannot download, $GOPATH not set. For more details see: go help gopath

Answer 1

This problem common if you haven't setup any go path yet. It is necessary.

I am assuming from the command line snap of yours, that you are a UNIX user. Googles official doc recommend that you setup your go path manually . $GOROOT is optional but $GOPATH has to be set if you are trying to get third party libraries.

Edit your ~/.bash_profile to add the following line:

export GOPATH=$HOME/work

Then logout and login or use source ~/.bash_profile You can read more from here. Assuming your Golang package directory is in work folder inside your home directory. The directory structure of work folder has to look like this,

• work
  • src
  • pkg
  • bin