Version:           SVN - 13/03/2009 (using KDE 4.2.1)
Compiler:          gcc (Debian 4.3.3-5) 4.3.3 
OS:                Linux
Installed from:    Debian testing/unstable Packages

I've compiled digikam for KDE 4.2 with (instructions provided at digikam's page):
(svn checkout are commented but substituted by svn up)

===========================================================================
#!/bin/sh -xve

# svn co -N svn://anonsvn.kde.org/home/kde/branches/KDE/4.2/kdegraphics
 cd kdegraphics
 svn up
 svn up libs
 svn up cmake
# To Checkout the latest digiKam and Kipi-plugins SVN source for KDE4:
 cd ..
# svn co -N svn://anonsvn.kde.org/home/kde/trunk/extragear/graphics
 cd graphics
 svn up
 svn up digikam
 svn up kipi-plugins
 svn up cmake
#Installion for KDE4 in your system (/opt/kde4)
# To compile the source code under linux you have to give these commands in the source code folders. You should use a seperate
 build folder to help cleaning up sources if something goes wrong.
for i in digikam kipi-plugins cmake; do
 cd $i;
 if ! [ -d build ]; then
        mkdir build
 fi
 cd build
 cmake -DCMAKE_BUILD_TYPE=debugfull -DCMAKE_INSTALL_PREFIX=/home/leslie/opt/kde4 ../../../graphics
 make
 #su
 make install
 cd ../..
done
=======================================================================

I've tried to start digikam both as follows:

1. Just typing /home/leslie/opt/kde4/bin/digikam
without setting extra config variables 

and 

2. Exporting these variables (as I've done with digikam 0.9.X from svn)

export DIGIKAMDEST=/home/leslie/opt/kde4
export KDEDIRS=$DIGIKAMDEST:/usr
export LD_LIBRARY_PATH=$DIGIKAMDEST/lib:$LD_LIBRARY_PATH
export LDPATH=$DIGIKAMDEST/lib:$LDPATH
export PATH=$DIGIKAMDEST/bin:$PATH

hash -r
digikam

and

3.  
export DIGIKAMDEST=/home/leslie/opt/kde4
export KDEDIRS=$DIGIKAMDEST:/usr
export LD_LIBRARY_PATH=$DIGIKAMDEST/lib:$LD_LIBRARY_PATH
export LDPATH=$DIGIKAMDEST/lib:$LDPATH
export PATH=$DIGIKAMDEST/bin:$PATH

hash -r
kdeinit
digikam



I'm receiving the following errors in the console, while no images are displayed in the central panel.

./leslie@mione:~$ ./opt/bin/digikam
leslie@mione:~$ ./opt/kde4/bin/digikam
digikam(10995) Phonon::KdePlatformPlugin::createBackend: using backend:  "GStreamer"
Starting to load Plugins.
Files:  "CompassFloatItem.so"
Files:  "MapScaleFloatItem.so"
Files:  "MarbleCrosshairsPlugin.so"
Files:  "MarbleGeoDataPlugin.so"
Files:  "MarbleOverviewMap.so"
Files:  "MarbleStarsPlugin.so"
Files:  "NavigationFloatItem.so"
=== MarbleDirs: ===
Local Path: "/home/leslie/.marble/data"
Plugin Local Path: "/home/leslie/.marble/plugins"

Marble Data Path (Run Time) : ""
Marble Data Path (Compile Time): "/usr/share/kde4/apps/marble/data"

Marble Plugin Path (Run Time) : ""

(some output snipped) 

generated indexes
MarblePlacemarkModel (generateIndex): Time elapsed: 564 ms
Style reset requested.
Style reset requested.
Style reset requested.
Style reset requested.
Style reset requested.
Style reset requested.
start generate indexes
generated indexes
MarblePlacemarkModel (generateIndex): Time elapsed: 563 ms
Style reset requested.
Style reset requested.
timeChanged
void SunLocator::update()
timeChanged
void SunLocator::update()
digikam(10995): Attempt to use QAction "camera_solid" with KXMLGUIFactory!
digikam(10995): Attempt to use QAction "usb_media" with KXMLGUIFactory!
digikam(10995): Attempt to use QAction "card_reader" with KXMLGUIFactory!
digikam(10995): Attempt to use QAction "camera_addedmanually" with KXMLGUIFactory!
digikam(10995): couldn't create slave: "Unable to create io-slave:
klauncher said: Unknown protocol 'digikamdates'.
"
digikam(10995): couldn't create slave: "Unable to create io-slave:
klauncher said: Unknown protocol 'digikamalbums'.
"

Full Entry at: http://pastebin.com/f6151526e


----leslie@mione:~$ set | grep KDE
KDEDIRS=/home/leslie/opt/kde4:/usr
KDE_FULL_SESSION=true
KDE_SESSION_UID=1000
KDE_SESSION_VERSION=4
----


Is there any other information that I could provide ?

I'm trying to start to contribute with digikam.

Thanks in advance,

Leslie