Go，Golang：主程序出现travis错误，进入get -v

In my repo's subdirectory, I have some scripts with package main to show some example usage fo my package. But this gives me the following errors when being tested on Travis.

 repo

 example-dir
      sub-dir
          main.go  // this gives me error like the following

github.com/~/directory-for-main-program The command "go get -v ./..." failed. Retrying, 2 of 3.

I see this error only in Travis , not in local machine with go test.

Is there anyway to separate the main program and still able to pass the Travis testing?

Either use the correct path in your main.go, which is the proper way or use build constraints to disable that file:

// +build local

package main

//other code

then to locally build it use go build -tags local or go run -tags local