Hi,
I get a runtime error with the CoreGL Demo
https://github.com/gtkd-developers/GtkD/blob/master/demos/gl/core/CoreGL.d

$ ~/Downloads/d/dStuff/GtkD-master/demos/gl/core>dub --force
Performing "debug" build using /usr/bin/dmd for x86_64.
gtk-d:gtkd ~master: building configuration "library"...
coregl ~master: building configuration "application"...
Linking...
Running ./coregl 
object.Exception@CoreGL.d(221): Compilation failure in vertex shader: �
----------------
CoreGL.d:221 uint coreGL.CoreGL.compileShader(int, immutable(char)[]) [0x71489e]
CoreGL.d:160 void coreGL.CoreGL.initShaders(uint*, uint*, uint*, uint*) [0x71442b]
CoreGL.d:88 void coreGL.CoreGL.CoreGL.realize(gtk.Widget.Widget) [0x7141da]
../../../generated/gtkd/gobject/DClosure.d:135 extern (C) void gobject.DClosure.DClosure.d_closure_marshal!(void delegate(gtk.Widget.Widget)).d_closure_marshal(gobject.c.types.GClosure*, gobject.c.types.GValue*, uint, gobject.c.types.GValue*, void*, void*) [0x8ef8f9]
??:? g_closure_invoke [0x7fc86fa4]
Program exited with code 1

Any Idea?