Unable to load image

[EldersJavas]

My project is unable to load image.

Version A

code

file, err := os.Open("D:\\GitHub\\LowGame\\src\\img\\ebiten.png")
	tmp, _, _ :=image.Decode(file)
	if err != nil {
		log.Fatal(err)
	}
	img = ebiten.NewImageFromImage(tmp)

Report Wrong:

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x5a2edb]

goroutine 1 [running, locked to thread]:
github.com/hajimehoshi/ebiten/v2.NewImageFromImage(0x0, 0x0, 0x0)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/image.go:789 +0x3b
main.init.0()
	D:/GitHub/LowGame/main.go:25 +0xf3

Version B

code

img, _, _ =ebitenutil.NewImageFromFile("D:\\GitHub\\LowGame\\src\\img\\ebiten.png")

Report Wrong:

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x8 pc=0x5a25b2]

goroutine 6 [running]:
github.com/hajimehoshi/ebiten/v2.(*Image).isDisposed(...)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/image.go:59
github.com/hajimehoshi/ebiten/v2.(*Image).DrawImage(0xc0000f8700, 0x0, 0xc000067d38)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/image.go:181 +0x52
main.(*Game).Draw(0xc00000ad08, 0xc0000f8700)
	D:/GitHub/LowGame/main.go:35 +0x208
github.com/hajimehoshi/ebiten/v2.(*imageDumperGame).Draw(0xc0001521e0, 0xc0000f8700)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/run.go:123 +0x4f
github.com/hajimehoshi/ebiten/v2.(*uiContext).update(0xa893a0, 0x1, 0x0, 0x0)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/uicontext.go:209 +0x150
github.com/hajimehoshi/ebiten/v2.(*uiContext).Update(0xa893a0, 0xc00027a4e0, 0x0)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/uicontext.go:153 +0xc3
github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).loop(0xa84600, 0x0, 0x0)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/internal/uidriver/glfw/ui.go:974 +0x158
github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).Run.func1(0xa84600, 0xc00003c360)
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/internal/uidriver/glfw/run_notsinglethread.go:52 +0xdb
created by github.com/hajimehoshi/ebiten/v2/internal/uidriver/glfw.(*UserInterface).Run
	D:/GOPATH/pkg/mod/github.com/hajimehoshi/ebiten/v2@v2.1.6/internal/uidriver/glfw/run_notsinglethread.go:36 +0x182

env

• go 1.14.15 windows
• github.com/hajimehoshi/ebiten v1.12.12 h1:JvmF1bXRa+t+/CcLWxrJCRsdjs2GyBYBSiFAfIqDFlI=
• github.com/hajimehoshi/ebiten/v2 v2.1.6 h1:miJzZA2yWi0XykXXAS7ILcnVzb5/InF0muxWzIL2JeE=
• github.com/hajimehoshi/ebiten/v2 v2.1.6/go.mod h1:jySpxHAruK+OxqSiU5+ga2OGvlQCIRNlKhDZTIyn9po=
• github.com/hajimehoshi/file2byteslice v0.0.0-20200812174855-0e5e8a80490e/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
• github.com/hajimehoshi/go-mp3 v0.3.2/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
• github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
• github.com/hajimehoshi/oto v0.7.1/go.mod h1:wovJ8WWMfFKvP587mhHgot/MBr4DnNy9m6EepeVGnos=

Thanks a lot.

[hajimehoshi]

	tmp, _, _ :=image.Decode(file)
	if err != nil {
		log.Fatal(err)
	}

You should get an error from Decode. Then

	tmp, _, err :=image.Decode(file)
	if err != nil {
		log.Fatal(err)
	}

is the correct code.

[EldersJavas]

report:

image: unknown format

[hajimehoshi]

Have you imported some image packages like image/png?

See https://pkg.go.dev/image#pkg-overview