this report has been filed here:

https://bugs.edge.launchpad.net/ubuntu/+source/f-spot/+bug/279284

"I get an unhandled exception when importing images from a Canon EOS400D camera when the destination disk is full instead of a "Warning, disk is full. Retry/Abort" dialog or similar. I get an error dialog which is not very helpful, see attachment.

Here is the output:

Ett ohanterat undantag kastades: Object reference not set to an instance of an object

  at FileImportBackend.Prepare () [0x00000]
  at ImportCommand.DoImport (.ImportBackend imp) [0x00000]
  at ImportCommand.ImportFromPaths (.PhotoStore store, System.String[] paths, FSpot.Tag[] tags, Boolean copy) [0x00000]
  at ImportCommand.ImportFromPaths (.PhotoStore store, System.String[] paths, FSpot.Tag[] tags) [0x00000]
  at FSpot.CameraFileSelectionDialog.ImportFiles () [0x00000]
  at FSpot.CameraFileSelectionDialog.Run () [0x00000]
  at MainWindow.ImportCamera (System.String camera_device) [0x00000]
  at FSpot.Core+ImportCommand.Execute () [0x00000]
  at FSpot.Core.Import (System.String path) [0x00000]
  at FSpot.Driver.Main (System.String[] args) [0x00000]
.NET Version: 2.0.50727.42

Assembly Version Information:

libgphoto2-sharp (1.0.3058.27698)
FlickrExport (0.0.0.0)
PicasaWebExport (0.0.0.0)
FolderExport (0.0.0.0)
CDExport (0.0.0.0)
SmugMugExport (0.0.0.0)
GalleryExport (0.0.0.0)
pango-sharp (2.12.0.0)
FSpot.Query (0.0.0.0)
SemWeb (0.7.1.0)
glade-sharp (2.12.0.0)
gtkhtml-sharp (3.16.0.0)
System.Transactions (2.0.0.0)
System.Data (2.0.0.0)
Mono.Data.SqliteClient (2.0.0.0)
System.Configuration (2.0.0.0)
System.Xml (2.0.0.0)
NDesk.DBus.Proxies (0.0.0.0)
gconf-sharp (2.20.0.0)
FSpot.Utils (0.0.0.0)
gdk-sharp (2.12.0.0)
gnome-vfs-sharp (2.20.0.0)
Mono.Addins (0.3.0.0)
NDesk.DBus.GLib (1.0.0.0)
NDesk.DBus (1.0.0.0)
System (2.0.0.0)
Mono.Posix (2.0.0.0)
Cms (0.0.0.0)
FSpot.Core (0.0.0.0)
atk-sharp (2.12.0.0)
gtk-sharp (2.12.0.0)
Mono.Addins.Setup (0.3.0.0)
gnome-sharp (2.20.0.0)
glib-sharp (2.12.0.0)
f-spot (0.4.3.1)
mscorlib (2.0.0.0)"