相关疑难解决方法(0)

我正在尝试按照简单的代码使用Fyne包创建 GUI ：

// from: https://github.com/fyne-io/fyne
package main
import (
    "fyne.io/fyne/widget"
    "fyne.io/fyne/app"
)
func main() {
    app := app.New()
    w := app.NewWindow("Hello")
    w.SetContent(widget.NewVBox(
        widget.NewLabel("Hello Fyne!"),
        widget.NewButton("Quit", func() {
            app.Quit()
        }),
    ))
    w.ShowAndRun()
}

它编译并构建可执行文件，没有任何错误，甚至没有警告，但在尝试运行时会出现以下错误：

I:\>rnfynetest
2019/08/25 12:37:18 Fyne error:  failed to initialise OpenGL
2019/08/25 12:37:18   Cause: glBeginConditionalRender
2019/08/25 12:37:18   At: C:/Users/ABCD/go/src/fyne.io/fyne/internal/driver/gl/window.go:1007
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x2c pc=0x572afd]

goroutine 1 [running, locked to thread]:
fyne.io/fyne/internal/driver/gl.(*window).SetContent(0x0, 0x8fc5e0, 0x1386e0c0)
        C:/Users/ABCD/go/src/fyne.io/fyne/internal/driver/gl/window.go:361 +0x1d
main.main()
        I:/rnfynetest.go:10 …