Go--no buildable Go source file in

Question

everyone. I have a problem with golang 's build.

The details:

I have a folder named "12" and creating a go source file named 12_test.go. Codes are below:

package main

import "fmt"

func main() {
    fmt.Println("Hello world")
}

.Then typing "go build 12_test.go". Something going wrong:

"go build command-line-arguments: no buildable Go source files in D:\12"

So,Could someone tell me why? Thanks and apology for my poor English.

In addition to what Simon answered; go run foo.go or go build (or go install) you shouldn't (normally) specify file names with go build. — Dave C
– Dave C, Commented Mar 19, 2015 at 6:12

Simon Whitehead · Accepted Answer · 2015-03-19 03:02:44Z

21

The suffix _test has special meaning in Go. It is where you put tests for your go programs. The build tool will ignore these completely .. they are run with go test.

Remove _test from the file name or just name it test.go.

answered Mar 19, 2015 at 3:02

Simon Whitehead

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