cannot find package "integration/handlers" 

hello , im trying to install this chat bot but i got this error 

main.go:5:2: cannot find package "integration/handlers" in any of:
  /usr/local/go/src/integration/handlers (from $GOROOT)
  /root/work/src/integration/handlers (from $GOPATH)

this happend when i tried to run "go run main.go"