我试图解决Orielly提供的示例Decentrallized Applications中提供的示例。golang错误：运行时无法找到软件包获取

go-ipfs

虽然部分文件夹存在于路径中，但出现错误。

/home/rajkumar/go/src/github.com/ipfs/go- ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58 (from $GOPATH)
$go get -d github.com/llSourcell/kerala 
package code.google.com/p/go.net/context: unrecognized import path 
"code.google.com/p/go.net/context" (parse 
https://code.google.com/p/go.net/context?go-get=1: no go-import meta 
tags (meta tag github.com/golang/go did not match import path 
code.google.com/p/go.net/context)) 
package github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58: cannot find 
package "github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58" in any of: 
    /usr/local/go/src/github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58 (from $GOROOT) 
    /home/rajkumar/go/src/github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-base58 (from $GOPATH) 
package github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-ctxgroup: cannot find 
package "github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-ctxgroup" in any of: 
    /usr/local/go/src/github.com/ipfs/go- 
ipfs/Godeps/_workspace/src/github.com/jbenet/go-ctxgroup (from $GOROOT) 
/home/rajkumar/go/src/github.com/ipfs/go- 
    ipfs/Godeps/_workspace/src/github.com/jbenet/go-ctxgroup (from $GOPATH) 
package github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore: cannot find 
package "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore" in any of: 
    /usr/local/go/src/github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore (from $GOROOT) 
    /home/rajkumar/go/src/github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore (from $GOPATH) 
package github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/sync: cannot find package "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/sync" in any of: 
    /usr/local/go/src/github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/sync (from $GOROOT) 
    /home/rajkumar/go/src/github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/sync (from $GOPATH)

是否有任何步骤我错过了解决错误。