When I attempt to start K3b it loads the splash screen then immedately pops up two error screens that state 'Could not find mime type application/octet-stream' and a third that says 'no mime types found'. Reproducible: Always Steps to Reproduce: 1. run k3b from command line 2. 3. Actual Results: When I attempt to start K3b it loads the splash screen then immedately pops up two error screens that state 'Could not find mime type application/octet-stream' and a third that says 'no mime types found'. Expected Results: Started up normally.. Backtrace from KDE crash manager: (no debugging symbols found)...0x41b19008 in waitpid () from /lib/libpthread.so.0 #0 0x41b19008 in waitpid () from /lib/libpthread.so.0 #1 0x410f5228 in ?? () from /usr/kde/3.3/lib/libkdecore.so.4 #2 0x41019eaa in KCrash::defaultCrashHandler(int) () from /usr/kde/3.3/lib/libkdecore.so.4 #3 0x410fb564 in kde_malloc_is_used () from /usr/kde/3.3/lib/libkdecore.so.4 #4 0x00000001 in ?? () Strace: http://oxygen.syn2.net/~phrost/k3b.txt Ldd: linux-gate.so.1 => (0xffffe000) libk3bplugin.so.2 => /usr/lib/libk3bplugin.so.2 (0x40031000) libartskde.so.1 => /usr/kde/3.3/lib/libartskde.so.1 (0x40060000) libqtmcop.so.1 => /usr/kde/3.3/lib/libqtmcop.so.1 (0x400bc000) libsoundserver_idl.so.1 => /usr/kde/3.3/lib/libsoundserver_idl.so.1 (0x400c3000) libkmedia2_idl.so.1 => /usr/kde/3.3/lib/libkmedia2_idl.so.1 (0x4012a000) libartsflow.so.1 => /usr/kde/3.3/lib/libartsflow.so.1 (0x4016c000) libasound.so.2 => /usr/lib/libasound.so.2 (0x402af000) libesd.so.0 => /usr/lib/libesd.so.0 (0x40356000) libaudiofile.so.0 => /usr/lib/libaudiofile.so.0 (0x4035e000) libvorbisfile.so.3 => /usr/lib/libvorbisfile.so.3 (0x40385000) libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0x4038d000) libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x40475000) libogg.so.0 => /usr/lib/libogg.so.0 (0x4049e000) libmad.so.0 => /usr/lib/libmad.so.0 (0x404a3000) libartsflow_idl.so.1 => /usr/kde/3.3/lib/libartsflow_idl.so.1 (0x404b9000) libmcop.so.1 => /usr/kde/3.3/lib/libmcop.so.1 (0x4056c000) libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x40622000) libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0x40626000) libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x4062b000) libkparts.so.2 => /usr/kde/3.3/lib/libkparts.so.2 (0x406a4000) libk3bdevice.so.2 => /usr/lib/libk3bdevice.so.2 (0x406e6000) libk3bcore.so.2 => /usr/lib/libk3bcore.so.2 (0x40705000) libk3btools.so.2 => /usr/lib/libk3btools.so.2 (0x40728000) libk3bproject.so.2 => /usr/lib/libk3bproject.so.2 (0x4077d000) libkio.so.4 => /usr/kde/3.3/lib/libkio.so.4 (0x40903000) libkdeui.so.4 => /usr/kde/3.3/lib/libkdeui.so.4 (0x40c0b000) libkdesu.so.4 => /usr/kde/3.3/lib/libkdesu.so.4 (0x40eb4000) libkwalletclient.so.1 => /usr/kde/3.3/lib/libkwalletclient.so.1 (0x40ece000) libkdecore.so.4 => /usr/kde/3.3/lib/libkdecore.so.4 (0x40edd000) libDCOP.so.4 => /usr/kde/3.3/lib/libDCOP.so.4 (0x410fc000) libresolv.so.2 => /lib/libresolv.so.2 (0x4112f000) libutil.so.1 => /lib/libutil.so.1 (0x41140000) libart_lgpl_2.so.2 => /usr/lib/libart_lgpl_2.so.2 (0x41143000) libidn.so.11 => /usr/lib/libidn.so.11 (0x41159000) libkdefx.so.4 => /usr/kde/3.3/lib/libkdefx.so.4 (0x41187000) libqt-mt.so.3 => /usr/qt/3/lib/libqt-mt.so.3 (0x411b3000) libmng.so.1 => /usr/lib/libmng.so.1 (0x41899000) libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x418db000) libXi.so.6 => /usr/X11R6/lib/libXi.so.6 (0x418f8000) libXrandr.so.2 => /usr/X11R6/lib/libXrandr.so.2 (0x41900000) libXcursor.so.1 => /usr/X11R6/lib/libXcursor.so.1 (0x41904000) libXft.so.2 => /usr/X11R6/lib/libXft.so.2 (0x4190d000) libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x41920000) libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x41946000) libexpat.so.0 => /usr/lib/libexpat.so.0 (0x419ae000) libdl.so.2 => /lib/libdl.so.2 (0x419cd000) libpng.so.3 => /usr/lib/libpng.so.3 (0x419d0000) libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x41a00000) libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x41a0f000) libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x41aed000) libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x41af6000) libpthread.so.0 => /lib/libpthread.so.0 (0x41b0d000) libXrender.so.1 => /usr/X11R6/lib/libXrender.so.1 (0x41b5d000) libz.so.1 => /lib/libz.so.1 (0x41b65000) libfam.so.0 => /usr/lib/libfam.so.0 (0x41b76000) libstdc++.so.5 => /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libstdc++.so.5 (0x41b7d000) libgcc_s.so.1 => /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/libgcc_s.so.1 (0x41c46000) libm.so.6 => /lib/libm.so.6 (0x41c4f000) libc.so.6 => /lib/libc.so.6 (0x41c70000) /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
Is it possible that you compiled k3b against kde-3.3 but tried to run it in kde-3.2? It usually leads to something like this.
Thanks to Gregorio Guidi, the problem was discovered, it appears gentoo never updated the .desktop file in /etc/X11/Sessions/ , so it was running an older version of KDE. Thanks all.
I had this same problem. Just wanted to clarify, the change that fixed it was in /etc/rc.conf to "XSESSION".
