version constraints conflict

[thomastthai]

I'm new to Godot. Godot v4.3 and go v1.23.4 are installed on my MacBook Pro (darwin/arm64). I am excited to check out this binding.

The Getting Started section from README.md said to use go install grow.graphics/gd/cmd/gd@master. There was no context as to what the directory should be so I started with an empty directory, issued that command, and got an error.

~/Documents/dev
❯ go version
go version go1.23.4 darwin/arm64
❯ godot --version
4.3.stable.official.77dcf97d8
❯ mkdir grow-graphics
❯ cd grow-graphics/
❯ go install grow.graphics/gd/cmd/gd@master
go: downloading grow.graphics/gd v0.0.0-20250114103426-bb15b6a07d69
go: grow.graphics/gd/cmd/gd@master: version constraints conflict:
        grow.graphics/[email protected]: parsing go.mod:
        module declares its path as: graphics.gd
                but was required as: grow.graphics/gd

Should go.mod use the module line below use module grow.graphics/gd instead or is there another fix?

module graphics.gd // <-- change to `module grow.graphics/gd`?

go 1.23.2

require runtime.link v0.0.0-20241203235822-266e6dd4f99d

require (
	github.com/tetratelabs/wazero v1.8.2
	golang.org/x/text v0.15.0
)

[Splizard]

Thanks for reporting your experience, you must be following the guide from the website? I think this needs to be updated.

I will sort this out in the mean time you can refer to the command on the Github readme page

go install graphics.gd/cmd/gd@master

The import path recently changed, along with other major changes this year, you can read about it in the announcement

[thomastthai]

I did follow the website's instructions.

go install graphics.gd/cmd/gd@master got me passed that error. Thank you. Here is a new error:

Documents/dev/grow-graphics
❯ cd ..

~/Documents/dev
❯ mv grow-graphics grow-graphics-demo

~/Documents/dev
❯ cd grow-graphics-demo/

Documents/dev/grow-graphics-demo
❯ go mod init grow-graphics-demo
go: creating new go.mod: module grow-graphics-demo
go: to add module requirements and sums:
        go mod tidy

Documents/dev/grow-graphics-demo
❯ go mod tidy
go: finding module for package graphics.gd/startup
go: finding module for package graphics.gd/classdb/Control
go: finding module for package graphics.gd/classdb/SceneTree
go: finding module for package graphics.gd/classdb/Label
go: found graphics.gd/classdb/Control in graphics.gd v0.0.0-20250114103426-bb15b6a07d69
go: found graphics.gd/classdb/Label in graphics.gd v0.0.0-20250114103426-bb15b6a07d69
go: found graphics.gd/classdb/SceneTree in graphics.gd v0.0.0-20250114103426-bb15b6a07d69
go: found graphics.gd/startup in graphics.gd v0.0.0-20250114103426-bb15b6a07d69

Documents/dev/grow-graphics-demo 2s
❯ go build
# grow-graphics-demo
./main.go:14:10: undefined: startup.Wait

Documents/dev/grow-graphics-demo
❯ gd run
# grow-graphics-demo
./main.go:14:10: undefined: startup.Wait
exit status 1

I tried both with the Godot program started and not started already.

main.go:

// This file is all you need to start a project.
// Save it somewhere, install the `gd` command and use `gd run` to get started.
package main

import (
	"graphics.gd/startup"

	"graphics.gd/classdb/Control"
	"graphics.gd/classdb/Label"
	"graphics.gd/classdb/SceneTree"
)

func main() {
	startup.Wait() // wait for the graphics/game engine to start up.
	hello := Label.New()
	hello.AsControl().SetAnchorsPreset(Control.PresetFullRect) // expand the label to take up the whole screen.
	hello.SetHorizontalAlignment(Label.HorizontalAlignmentCenter)
	hello.SetVerticalAlignment(Label.VerticalAlignmentCenter)
	hello.SetText("Hello, World!")
	SceneTree.Add(hello)
}

go.mod:

Documents/dev/grow-graphics-demo
❯ cat go.mod
module grow-graphics-demo

go 1.23.4

require graphics.gd v0.0.0-20250114103426-bb15b6a07d69

require (
        github.com/tetratelabs/wazero v1.8.2 // indirect
        golang.org/x/text v0.15.0 // indirect
        runtime.link v0.0.0-20241203235822-266e6dd4f99d // indirect
)

Ensure packages are installed:

Documents/dev/grow-graphics-demo
❯ go get graphics.gd/startup

Documents/dev/grow-graphics-demo
❯ go get graphics.gd/classdb/Control

Documents/dev/grow-graphics-demo
❯ go get graphics.gd/classdb/Label

Documents/dev/grow-graphics-demo
❯ go get graphics.gd/classdb/SceneTree

Documents/dev/grow-graphics-demo
❯ cd ~/Documents/go/pkg/mod/graphics.gd\@v0.0.0-20250114103426-bb15b6a07d69/

pkg/mod/[email protected]🔒
❯ ls
License         classdb         gd.go           go.sum          shaders         variant
Readme.md       cmd             go.mod          internal        startup

pkg/mod/[email protected]🔒
❯ cd startup

mod/[email protected]/startup🔒
❯ ls
cgo.go                          gdextension_interface.h         startup.go
garbage_collector.go            handle.go                       startup_js.go
gdextension_interface.go        reloads.go                      startup_wasip1.go

Where is the wait function in startup?

mod/[email protected]/startup🔒
❯ grep Wait *
gdextension_interface.go:               if theMainFunctionIsWaitingForTheEngineToShutDown {
startup.go:     theMainFunctionIsWaitingForTheEngineToShutDown = true
startup.go:var theMainFunctionIsWaitingForTheEngineToShutDown = false
startup.go:             theMainFunctionIsWaitingForTheEngineToShutDown = true

[thomastthai]

I tested the repo with the demo examples. The examples with startup.Wait() all failed with the same error. The other examples worked.

[thomastthai]

Your commit cb25f73 addressed the startup.Wait() error. Thanks! Hopefully, the demos that used startup.Wait() will get updated too.