wingpanel build fail

==> Building and installing package
==> Determining latest bzr revision...
You have not informed bzr of your Launchpad ID, and you must do this to
write to Launchpad or access private data.  See "bzr help launchpad-login".
  -> Version found: 54
==> Making package: wingpanel-bzr 54-1 (Thu Mar 15 17:08:14 GMT 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
==> Extracting Sources...
==> Starting build()...
==> Connecting to Bazaar server....
You have not informed bzr of your Launchpad ID, and you must do this to
write to Launchpad or access private data.  See "bzr help launchpad-login".
Branched 54 revision(s).
==> BZR checkout done or server timeout
==> Starting make...
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- checking for modules 'gobject-2.0;glib-2.0;gio-2.0;gee-1.0;gdk-x11-3.0;x11;gtk+-3.0;granite'
--   found gobject-2.0, version 2.30.2
--   found glib-2.0, version 2.30.2
--   found gio-2.0, version 2.30.2
--   found gee-1.0, version 0.6.4
--   found gdk-x11-3.0, version 3.2.3
--   found x11, version 1.4.99.1
--   found gtk+-3.0, version 3.2.3
--   found granite, version 0.1.4
-- checking for module 'gthread-2.0'
--   found gthread-2.0, version 2.30.2
-- checking for module 'indicator3-0.4'
--   package 'indicator3-0.4' not found
CMake Error at /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:266 (message):
  A required package was not found
Call Stack (most recent call first):
  /usr/share/cmake-2.8/Modules/FindPkgConfig.cmake:320 (_pkg_check_modules_internal)
  CMakeLists.txt:23 (pkg_check_modules)


-- Found Vala: /usr/bin/valac
-- checking for a minimum Vala version of 0.12.0
--   found Vala, version 0.15.2
-- GSettings schemas will be installed locally.
-- GSettings shemas will be compiled.
-- GSettings schemas will be installed into /usr/share/glib-2.0/schemas/
-- Configuring incomplete, errors occurred!
==> ERROR: A failure occurred in build().
    Aborting...
==> ERROR: Makepkg was unable to build wingpanel-bzr.
==> Restart building wingpanel-bzr ? [y/N]
==> --------------------------------------
==>