I've installed the GNU Smalltalk package and can get to the SmallTalk command line with the command 'gst'. However, I can't start the visual gst browser using the command:

$ gst-browser

When I try, this is what I get:

peter@peredur:~$ gst-browser
Object: CFunctionDescriptor new: 1 "<0x40488720>" error: Invalid C call-out gdk_colormap_get_type
SystemExceptions.CInterfaceError(Smalltalk.Exception)>>signal (ExcHandling.st:254)
SystemExceptions.CInterfaceError class(Smalltalk.Exception class)>>signal: (ExcHandling.st:161)
Smalltalk.CFunctionDescriptor(Smalltalk.CCallable)>>callInto: (CCallable.st:165)
GdkColormap class>>getType (GTK.star#VFS.ZipFile/Funcs.st:1)
optimized [] in GLib class>>registerAllTypes (GTK.star#VFS.ZipFile/GtkDecl.st:78)
Smalltalk.OrderedCollection>>do: (OrderColl.st:68)
GLib class>>registerAllTypes (GTK.star#VFS.ZipFile/GtkDecl.st:78)
Smalltalk.UndefinedObject>>executeStatements (GTK.star#VFS.ZipFile/GtkImpl.st:1078)
Object: CFunctionDescriptor new: 1 "<0x404a7c28>" error: Invalid C call-out gtk_window_new
SystemExceptions.CInterfaceError(Exception)>>signal (ExcHandling.st:254)
SystemExceptions.CInterfaceError class(Exception class)>>signal: (ExcHandling.st:161)
CFunctionDescriptor(CCallable)>>callInto: (CCallable.st:165)
GTK.GtkWindow class>>new: (GTK.star#VFS.ZipFile/Funcs.st:1)
VisualGST.GtkDebugger(VisualGST.GtkMainWindow)>>initialize (VisualGST.star#VFS.ZipFile/GtkMainWindow.st:131)
VisualGST.GtkDebugger class(VisualGST.GtkMainWindow class)>>openSized: (VisualGST.star#VFS.ZipFile/GtkMainWindow.st:19)
[] in VisualGST.GtkDebugger class>>open: (VisualGST.star#VFS.ZipFile/Debugger/GtkDebugger.st:16)
[] in BlockClosure>>forkDebugger (DebugTools.star#VFS.ZipFile/DebugTools.st:380)
[] in Process>>onBlock:at:suspend: (Process.st:392)
BlockClosure>>on:do: (BlkClosure.st:193)
[] in Process>>onBlock:at:suspend: (Process.st:393)
BlockClosure>>ensure: (BlkClosure.st:269)
[] in Process>>onBlock:at:suspend: (Process.st:370)
[] in BlockClosure>>asContext: (BlkClosure.st:179)
BlockContext class>>fromClosure:parent: (BlkContext.st:68)

Everything hangs at this point until I hit ^C, after which, I get:

Object: CFunctionDescriptor new: 1 "<0x404a7c28>" error: Invalid C call-out gtk_window_new
SystemExceptions.CInterfaceError(Exception)>>signal (ExcHandling.st:254)
SystemExceptions.CInterfaceError class(Exception class)>>signal: (ExcHandling.st:161)
CFunctionDescriptor(CCallable)>>callInto: (CCallable.st:165)
GTK.GtkWindow class>>new: (GTK.star#VFS.ZipFile/Funcs.st:1)
VisualGST.GtkDebugger(VisualGST.GtkMainWindow)>>initialize (VisualGST.star#VFS.ZipFile/GtkMainWindow.st:131)
VisualGST.GtkDebugger class(VisualGST.GtkMainWindow class)>>openSized: (VisualGST.star#VFS.ZipFile/GtkMainWindow.st:19)
[] in VisualGST.GtkDebugger class>>open: (VisualGST.star#VFS.ZipFile/Debugger/GtkDebugger.st:16)
[] in BlockClosure>>forkDebugger (DebugTools.star#VFS.ZipFile/DebugTools.st:380)
[] in Process>>onBlock:at:suspend: (Process.st:392)
BlockClosure>>on:do: (BlkClosure.st:193)
[] in Process>>onBlock:at:suspend: (Process.st:393)
BlockClosure>>ensure: (BlkClosure.st:269)
[] in Process>>onBlock:at:suspend: (Process.st:370)
[] in BlockClosure>>asContext: (BlkClosure.st:179)
BlockContext class>>fromClosure:parent: (BlkContext.st:68)
peter@peredur:~$ 

Is there a problem with this package?