*ebiten.Image causes duplicate symbols for architecture x86_64

[alejandro-a]

Hi,

when I try to use a variable with *ebiten.Image as type I get the following error:

# command-line-arguments
/Users/myuser/.goenv/versions/1.15.7/pkg/tool/darwin_amd64/link: running clang failed: exit status 1
duplicate symbol '_Go_Device_MakeLibrary' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000017.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000055.o
duplicate symbol '_Device_MakeLibrary' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetViewport' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandBuffer_Commit' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Texture_Height' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_SupportsFeatureSet' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Buffer_CopyToContents' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_DrawPrimitives' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_DrawIndexedPrimitives' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetVertexBytes' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetFragmentBytes' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Texture_GetBytes' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_MakeBufferWithBytes' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetBlendColor' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetVertexBuffer' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandQueue_MakeCommandBuffer' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandBuffer_MakeBlitCommandEncoder' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandBuffer_MakeRenderCommandEncoder' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Library_MakeFunction' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Texture_ReplaceRegion' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Buffer_Retain' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_MakeBufferWithLength' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Texture_Width' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandEncoder_EndEncoding' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_BlitCommandEncoder_Synchronize' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_MakeCommandQueue' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetRenderPipelineState' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_MakeRenderPipelineState' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Buffer_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Function_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandQueue_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderPipelineState_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Texture_Release' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_RenderCommandEncoder_SetFragmentTexture' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_BlitCommandEncoder_CopyFromTexture' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_BlitCommandEncoder_SynchronizeTexture' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_Device_MakeTexture' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandBuffer_PresentDrawable' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CreateSystemDefaultDevice' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_CommandBuffer_WaitUntilCompleted' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000018.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000056.o
duplicate symbol '_MetalLayer_SetMaximumDrawableCount' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_SetPixelFormat' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_PixelFormat' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MakeMetalLayer' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_SetDrawableSize' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_SetOpaque' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalDrawable_Texture' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_NextDrawable' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_SetDevice' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_MetalLayer_SetDisplaySyncEnabled' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000039.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000059.o
duplicate symbol '_Window_ContentView' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000042.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000062.o
duplicate symbol '_View_SetLayer' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000042.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000062.o
duplicate symbol '_View_SetWantsLayer' in:
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000042.o
    /var/folders/sv/v711qrdx14vbpq03112_llx40000gn/T/go-link-824786425/000062.o
ld: 54 duplicate symbols for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Code usage:

type PlayerEntity struct {
	Ase         *goaseprite.File
	Texture     *ebiten.Image
	TextureRect image.Image
	frameNum    int
}

I'm using:

• MacOS Big SUr 11.2.3
• ebiten 2.0.6
• golang 1.15.7

[hajimehoshi]

Apparently you are using goenv, and I'm not familiar with it. Could you try go clean -cache -modcache?

[hajimehoshi]

Yeah, I could reproduce this issue by importing v1 and v2 at the same time.

module v1andv2

go 1.16

require (
        github.com/hajimehoshi/ebiten v1.12.9
        github.com/hajimehoshi/ebiten/v2 v2.0.6
)

package main

import (
        _ "github.com/hajimehoshi/ebiten"
        _ "github.com/hajimehoshi/ebiten/v2"
)

func main() {
}

$ go build main.go                                                                                                                                                                                                                                                                    
# command-line-arguments                                                                                                                                                                                                                                                              
/usr/local/go/pkg/tool/darwin_amd64/link: running clang failed: exit status 1                                                                                                                                                                                                         
duplicate symbol '_Go_Device_MakeLibrary' in:                                                                                                                                                                                                                                         
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000020.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000027.o                                                                                                                                                                                                       
duplicate symbol '_Device_MakeLibrary' in:                                                                                                                                                                                                                                            
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000021.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000028.o                                                                                                                                                                                                       
duplicate symbol '_RenderCommandEncoder_SetViewport' in:                                                                                                                                                                                                                              
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000021.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000028.o    
...

[sionleroux]

This is probably a common mistake for any v2 Go lib when typing go get without the /v2 on the end.

[alejandro-a]

Yeah, I could reproduce this issue by importing v1 and v2 at the same time.

module v1andv2

go 1.16

require (
        github.com/hajimehoshi/ebiten v1.12.9
        github.com/hajimehoshi/ebiten/v2 v2.0.6
)

package main

import (
        _ "github.com/hajimehoshi/ebiten"
        _ "github.com/hajimehoshi/ebiten/v2"
)

func main() {
}

$ go build main.go                                                                                                                                                                                                                                                                    
# command-line-arguments                                                                                                                                                                                                                                                              
/usr/local/go/pkg/tool/darwin_amd64/link: running clang failed: exit status 1                                                                                                                                                                                                         
duplicate symbol '_Go_Device_MakeLibrary' in:                                                                                                                                                                                                                                         
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000020.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000027.o                                                                                                                                                                                                       
duplicate symbol '_Device_MakeLibrary' in:                                                                                                                                                                                                                                            
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000021.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000028.o                                                                                                                                                                                                       
duplicate symbol '_RenderCommandEncoder_SetViewport' in:                                                                                                                                                                                                                              
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000021.o                                                                                                                                                                                                       
    /var/folders/60/khbk2xqn1c5bml1byjn89dwc0000gn/T/go-link-970782032/000028.o    
...

Yes I guess It was the import of these 2 different versions at the same time. Today I solved updating my go version and probably the library dependencies. My actual go.mod is something like that:

module game

go 1.16

require (
	github.com/bytearena/ecs v1.0.0
	github.com/damienfamed75/aseprite v0.3.1
	github.com/hajimehoshi/ebiten/v2 v2.0.6
	golang.org/x/sys v0.0.0-20210313202042-bd2e13477e9c // indirect
)

Unfortunately I don't have the previous project code status where this error showed up, but I can confirm the issue you reproduced. It's probably that.

[alejandro-a]

I want to add another point about my issue.
In my specific case is vscode auto-import fault because It imports the instance from old ebiten version automatically (this one "github.com/hajimehoshi/ebiten" instead of this one here "github.com/hajimehoshi/ebiten/v2").
So, I guess my go.mod created a mixed version.

[hajimehoshi]

Thanks! I marked this discussion solved.

[sionleroux]

I'm not sure if there is some significant difference between this example and mine, but the little shooter game I made last year has an *ebiten.Image inside every game object and built fine on macOS, also bigSur and also whatever the previous version was called. It was built with Go 1.15 and Ebiten 2.0.0. I can try it out with versions more like in OP's post it's relevant.