I just can not configure the GUI fyne-io. go get fyne.io/fyne gave an error
package fyne.io/fyne: unrecognized import path "fyne.io/fyne" (https fetch: Get https://fyne.io/fyne?go- get=1: dial tcp: lookup fyne.io: no such host)
It’s good that IDE from JetBrains installed it from import
import ( "fyne.io/fyne/widget" "fyne.io/fyne/app" )
Then at go run there was an error
exec: “gcc”: executable file not found in %PATH%
Installation TDM-GCC helped solve the problem
And then I can not move.
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()
}
After go run error
2019/03/26 13:51:11 Fyne error: failed to initialise OpenGL
2019/03/26 13:51:12 Cause: glClientWaitSync
2019/03/26 13:51:12 At: C:/gopath/src/fyne.io/fyne/driver/gl/window.go:834
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x10 pc=0x589c9d]
gl installed
Issue 1 looked like a temporary issue in your DNS lookup - the IDE resolved it shortly after. Issue 2 well done on finding the solution. Issue 3 you’d be best placed raising a bug on the GitHub tracker[1] - with details of your windows version and hardware so that it can be worked on with you.
From fyne documentation
By default Fyne uses the gl golang bindings which means you need a working OpenGL configuration. Debian/Ubuntu based systems may also need to install the libgl1-mesa-dev and xorg-dev packages.
What Is OpenGL? OpenGL is a Graphics rendering API which is operating system independent, window system independent and has high-quality color images composed of geometric and image primitives.
OpenGL APIs can use following …
Gl
OpenGL API implementation (http://www.opengl.org)
Glu
OpenGL Utility
Glut – GLUT (OpenGL Utility Toolkit) – Glut is portable windowing API and it is not officially part of OpenGL.
OpenGL Utility Toolkit (http://www.opengl.org/resources/libraries/glut/)
FLTK
FlashLight ToolKit (http://www.fltk.org/)
GLEW…
Run the following commands to install OpenGL.
sudo apt-get update
sudo apt-get install libglu1-mesa-dev freeglut3-dev mesa-common-dev
It is possible that your graphics driver is out of date. Some others have reported that by updating your drivers this issue has resolved itself.