Cannot run make commad in local environment

Hi everyone !!
I am new to rancher K3s and I am trying to build k3s in my local environment using make command. I am using ubuntu 18.04 and my golang version 1.12 I am getting the following error

Downloading dapper
./.dapper.tmp: 1: ./.dapper.tmp: Syntax error: redirection unexpected
Makefile:6: recipe for target '.dapper' failed
make: *** [.dapper] Error 2

Please help me.

Hi everyone ! Can someone please help me I am really stuck. I need a solution to my above stated issue.