unknown field 'Cloneflags' in struct literal of type syscall.SysProcAttr

[Punal Patel]

go get github.com/lizrice/containers-from-scratch  1 ↵  978  15:29:12

github.com/lizrice/containers-from-scratch

go/src/github.com/lizrice/containers-from-scratch/main.go:33: unknown field 'Cloneflags' in struct literal of type syscall.SysProcAttr
go/src/github.com/lizrice/containers-from-scratch/main.go:49: undefined: syscall.Sethostname
go/src/github.com/lizrice/containers-from-scratch/main.go:52: undefined: syscall.Mount
go/src/github.com/lizrice/containers-from-scratch/main.go:53: undefined: syscall.Mount

[Liz Rice]

Sorry, I don't know how I missed this. You need to build with GOOS=linux. I should add that to the README

[zc2603]

I work on Mac with GoLand. And set GOOS=linux. But still got this error. Is there somewhere else I have to set?

[Liz Rice]

I'm afraid I'm not familiar with GoLand, but you should have these defined OK in the Linux version of syscall. What version of Go are you using?

[zc2603]

I use Go 1.9. It works fine in Linux.
I guess it is mac that causes the error? Mac OS does not support those sys flags although I set GOOS=Linux.

[FerJ]

Anyone has any clue on how to get the flags set for mac OS?

[Liz Rice]

@jebuscraisp if you look at the comments for SysProcAttr you'll see that CloneFlags (and some other fields) are only supported on Linux. To try this on a Mac or Windows machine, you can run Linux in a Virtual Machine.

[Derek Bassett]

@Lucier2603 If you put // +build linux before the package main
like so:

// +build linux

package main

GoLand will stop reporting the error.
Given that this must be built in Linux anyway it really doesn't matter.

[ludwigmuench]

For anyone getting errors with VS Code on macOS:

add the following line to settings.json and restart the editor:

"go.toolsEnvVars": {"GOOS" : "linux"},

[Neeraj Jain]

@ludwigmuench Doesn't work on mac

[DU5T6REAK]

If you use IDEA, go to Languages & Frameworks->Go->Build Tags Vendoring to set OS as linux.