Hi, I am unable to correct this error. The output of make in the $(DEVDIR)/fs/apps/ipiped/src/src directory is shown below:

  VALAC  ipiped_vala.stamp
main.vala:12.22-12.35: error: The type name `DBusConnection' could not be found
void on_bus_aquired (DBusConnection conn) {
                     ^^^^^^^^^^^^^^

I've searched the forum and googled it, but cannot find a fix to it. I'm pretty sure I'm following RidgeRun's instructions to make their SDK, although I had to go into $(DEVDIR)/fs/host-apps/vala-0.12.0 itself and make inside that directory in order to get that to compile.  What can I do to fix this? Thanks.