Is this repeatable? What are the contents of main.go?

@ianlancetaylor

This problem happens every time after I use go build .The Contents of main.go is simple and all my projects have this problem.

package main

import "fmt"

func main() {
    fmt.Println("jcuan")
}

This problem happens every time after I use go build .

That does not seem to match this statement of yours.

#wait a few minutes, build successfully again

So it looks like some process is possibly using a.out.exe for some time. I don't know what is the lsof equivalent in Windows, but are you sure that no process is actually using a.out.exe ?

@agnivade @ianlancetaylor

This problem happens every time after I use go build .

I mean I must wait a few minutes in order to build successfully again almost every time after using go build.

Now, I find that maybe it's caused by vscode/go extension in vscode. Yesterday, I turn off vscode and use notepad to edit code, which doesn't fix this problem. But today, I rebooted my computer and didn't open vscode before using go build and I didn't encounter this problem again after many tries. Then I opened vscode and this problem appeared again but the probability was very low.

Thank you both~ 😁

This solution helps for me. You can try it.
It seems that vscode is the cause of the problem.

it happens almost every time when using go version >=1.11(I've tried 1.11,1.12,1.13).
but it disappears when using go 1.9 or 1.10.
my env:
windows10, no IDE, just cmd/go build