This bug was originally filed here: https://bugzilla.redhat.com/show_bug.cgi?id=569631 dbus-glib-0.84-2.fc13.x86_64 Recent dbus-glib versions seems to mangle the error name by capitalizing the first letter. I've seen this in many dbus-glib apps - here's an example from udisks # dbus-send --print-reply --system --dest=org.freedesktop.UDisks /org/freedesktop/UDisks org.freedesktop.UDisks.LinuxLvm2LVStart string:foo string:bar array:string: Error Org.freedesktop.UDisks.Error.Failed: Cannot find Logical Volume with Group UUID `foo' and UUID `bar' This error doesn't seem to happen with non-dbus-glib bindings, for example, here's polkit (using eggdbus) # dbus-send --print-reply --system --dest=org.freedesktop.PolicyKit1 /org/freedesktop/PolicyKit1/Authority org.freedesktop.PolicyKit1.Authority.CancelCheckAuthorization string:foo Error org.freedesktop.PolicyKit1.Error.Failed: No such cancellation_id foo for name :1.1038
fixed in bug 21010 *** This bug has been marked as a duplicate of bug 21010 ***
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