Introducing package problem into golang language

cannot find package "github.com/urfave/cli" in any of:

cannot find package "script" in any of

cannot find package "server" in any of

how to solve this error when running git cloned go code

my dos window runs go get github.com/urfave/cli , with no effect

find a solution

Screenshot:

Mar.03,2021

take a screenshot of the error message. There are two reasons for preliminary judgment

  1. GOPATH
  2. Network problems
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b35d0f-2b80e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b35d0f-2b80e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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