xfce 4.6 mail watch invisible

[techuser]

Hi there!

I'm using xfce 4.6 from xfce-dev and everything works really well, except that I cannot find xfce-extra/xfce4-mailwatch plugin in the add pluguin list in panel options, and it is installed:

xfce-extra/xfce4-mailwatch
Latest version available: 9999
Latest version installed: 9999
Size of files: 0 kB
Homepage: http://spuriousinterrupt.org/projects/mailwatch
Description: Mail notification panel plugin
License: GPL-2



Could it be that xfce-base/xfce4-extras is not installed because it depends on "xfce-extra/xfce4-notes-9999 from xfce-dev" that is not compiling because:



make[2]: se ingresa al directorio `/var/tmp/portage/xfce-extra/xfce4-notes-9999/work/xfce4-notes-plugin-9999/panel-plugin'
valac --pkg=gtk+-2.0 hypertextview.vala -C
make[2]: valac: No se encontró el programa
make[2]: *** [vala.stamp] Error 127
make[2]: se sale del directorio `/var/tmp/portage/xfce-extra/xfce4-notes-9999/work/xfce4-notes-plugin-9999/panel-plugin'
make[1]: *** [all-recursive] Error 1
make[1]: se sale del directorio `/var/tmp/portage/xfce-extra/xfce4-notes-9999/work/xfce4-notes-plugin-9999'
make: *** [all] Error 2
*
* ERROR: xfce-extra/xfce4-notes-9999 failed.
* Call stack:
* ebuild.sh, line 48: Called src_compile
* environment, line 2767: Called xfce4_src_compile
* environment, line 3548: Called die
* The specific snippet of code:
* emake ${JOBS} || die "emake failed"
* The die message:
* emake failed


I really do not use notes, but I really use mail watcher a lot.