Error when running particle.exe from go-qml.

gistfile1.txt

panic: invalid memory address or nil pointer dereference
fatal error: panic during malloc
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x41ba0a]

runtime stack:
runtime.panic(0x4f2260, 0x677b0f)
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/runtime/panic.c:233 +0x2b
runtime: unexpected return pc for runtime.sigpanic called from 0x7577ece2

goroutine 4 [syscall]:
runtime.cgocall(0x48c36b, 0x3f57c4)
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/runtime/cgocall.c:149 +0x10c fp=0x3f57b8
github.com/niemeyer/qml._Cfunc_idleTimerInit(0x67f610)
	C:/Users/andre/AppData/Local/Temp/go-build769845431/github.com/niemeyer/qml/_obj/_cgo_defun.c:229 +0x33 fp=0x3f57c4
github.com/niemeyer/qml.guiLoop()
	C:/gopath/src/github.com/niemeyer/qml/bridge.go:39 +0x41 fp=0x3f57cc
runtime.goexit()
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/runtime/proc.c:1394 fp=0x3f57d0
created by github.com/niemeyer/qml.Init
	C:/gopath/src/github.com/niemeyer/qml/qml.go:44 +0x8c

goroutine 1 [semacquire]:
sync.runtime_Semacquire(0x67f64c)
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/runtime/sema.goc:199 +0x33
sync.(*Mutex).Lock(0x67f648)
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/sync/mutex.go:66 +0xcd
github.com/niemeyer/qml.Init(0x0)
	C:/gopath/src/github.com/niemeyer/qml/qml.go:45 +0x9c
main.main()
	C:/gopath/src/github.com/niemeyer/qml/examples/particle/main.go:10 +0x27

goroutine 3 [syscall]:
runtime.goexit()
	C:/Users/ADMINI~1/AppData/Local/Temp/2/bindist550409343/go/src/pkg/runtime/proc.c:1394