Bug 163578

*** This bug has been confirmed by popular vote. ***

I've spend some time investigating this issue and I have some additional details to add.

The problem seems to be not with "knetworkconf" gui code (C++ code) but with perl code of backend.
When I run 
.../backends/network-conf script I see following errors
--
Can't locate /general.pl in @INC (@INC contains: /usr/lib/perl5/5.10.0/i586-linux-thread-multi /usr/lib/perl5/5.10.0 /usr/lib/perl5/site_perl/5.10.0/i586-linux-thread-multi /usr/lib/perl5/site_perl/5.10.0 /usr/lib/perl5/vendor_perl/5.10.0/i586-linux-thread-multi /usr/lib/perl5/vendor_perl/5.10.0 /usr/lib/perl5/vendor_perl .) at ../backends_back/network-conf line 52.
BEGIN failed--compilation aborted at ../backends_back/network-conf line 58.
--

But there should be no errors when running this script. When I checked all perl scripts I found following
--
$SCRIPTSDIR = "";
if ($SCRIPTSDIR =~ /^@scriptsdir[@]/)
...
--
When I manually edited all perl scripts and specified value of this variable directly in each script:
--
$SCRIPTSDIR = "/usr/share/kde4/apps/knetworkconf/backends"; 
--
I was able to run this script without errors and knetworkconf started to work.

So the problem is that the value of scriptsdir variable was not defined in backends scripts. As far as I can see from http://websvn.kde.org/trunk/KDE/kdeadmin/knetworkconf/backends/ the same variable is defined in system-tools-backends.pc and probably pkg-config (http://pkg-config.freedesktop.org/wiki/FrontPage) should be used during compilation to set values of this variable in all scripts (perl sources have $SCRIPTSDIR = "@scriptsdir@"; definition of this variable and probably the value should be set during compilation). I am not familiar with CMake and I am not sure how exactly knetworkconf should be compiled to set the values of $SCRIPTSDIR variable during compilation. But I hope that this additional information will help to resolve this issue.

Thanks,
Serhiy

In order to resolve problem with displaying knetworkconf in KDE 4.x system settings need to change header of "kcm_knetworkconfmodule.desktop" file to be following:
--
[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KCModule
X-DocPath=knetworkconf/index.docbook
Icon=knetworkconf
#Icon=preferences-system-network
Exec=kcmshell4 kcm_knetworkconfmodule

X-KDE-Library=kcm_knetworkconfmodule
X-KDE-PluginKeyword=knetworkconf
X-KDE-ParentApp=kcontrol

X-KDE-System-Settings-Parent-Category=network-settingss
--

This will add additional section to "System Settings"->"General"->"Network & Connectivity"->"Network Settings"->"Network Settings".
Thanks,
Serhiy

Sorry, there is a typo in my previous post.

In order to resolve problem with displaying knetworkconf in KDE 4.x system settings need to change header of "kcm_knetworkconfmodule.desktop" file to be following:
-- 
[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KCModule
X-DocPath=knetworkconf/index.docbook
Icon=knetworkconf
#Icon=preferences-system-network
Exec=kcmshell4 kcm_knetworkconfmodule

X-KDE-Library=kcm_knetworkconfmodule
X-KDE-PluginKeyword=knetworkconf
X-KDE-ParentApp=kcontrol

X-KDE-System-Settings-Parent-Category=network-settings
-- 

This will add additional section to "System Settings"->"General"->"Network & Connectivity"->"Network Settings"->"Network Settings".

Thanks,
Serhiy 

In order to resolve problem with displaying knetworkconf in KDE 4.x system settings need to change header of "kcm_knetworkconfmodule.desktop" file to be following:

-- 
[Desktop Entry]
Type=Service
X-KDE-ServiceTypes=KCModule
X-DocPath=knetworkconf/index.docbook
Icon=knetworkconf
#Icon=preferences-system-network
Exec=kcmshell4 kcm_knetworkconfmodule

X-KDE-Library=kcm_knetworkconfmodule
X-KDE-PluginKeyword=knetworkconf
X-KDE-ParentApp=kcontrol

X-KDE-System-Settings-Parent-Category=network-settings
-- 

This will add additional section to "System Settings"->"General"->"Network & Connectivity"->"Network Settings"->"Network Settings".

Thanks,
Serhiy

Please sorry for so many comments.
Actually comments #4 and #5 are broken. Please remove them.

Comment #3 is ok with the only exception that 
X-KDE-System-Settings-Parent-Category=network-settingss
should be changed to 
X-KDE-System-Settings-Parent-Category=network-settings
(one 's' at the end).

System Settings in KDE 4.1 does not support "Administrative Mode". This is planed for KDE 4.2
http://techbase.kde.org/Schedules/KDE4/4.2_Feature_Plan
This feature is necessary for knetworkconf.

Any news regarding this bug? I'm using kde 4.2. beta 2 on Debian and the problem still remains. I mean, there is a "Network settings" tab (System settings/network settings/network settings) but if I click on it, no interfaces show up and I get the "could not parse the XML file ()." message...

I can confirm, that bug still there even KDE4 RC1 in Kubuntu 8.10.!
Run /usr/share/kde4/services/kcm_knetworkconfmodule.desctop and you see it.
Now atleast that module is aviable in KDE4 administration module (in KDE 4.1x was disabled)

(In reply to comment #7)
> System Settings in KDE 4.1 does not support "Administrative Mode". This is
> planed for KDE 4.2
> http://techbase.kde.org/Schedules/KDE4/4.2_Feature_Plan
> This feature is necessary for knetworkconf.

I'm running the final 4.2.0 on Gentoo. This feature has not yet been implemented.

I also experience the "Could not parse the XML file ()" message, still in 4.2.0.

I'm running Gentoo with KDE 4.2.60 (KDE 4.2.60 (KDE 4.3 >= 20090116)).
The variables ${filesdir} and ${scriptsdir} don't seem to exist when the configure_file command is run from backends/CMakeLists.txt.

The final system-tools-backends.pc file looks like:

   prefix=/usr/kde/live
   exec_prefix=/usr/kde/live/lib64/kde4/libexec
   libdir=/usr/kde/live/lib64
   includedir=/usr/kde/live/include

   filessdir=
   backenddir=

   Name: gst-backends
   Description: GNOME System Tools backends
   Version: 
   Requires: 
   Libs:
   Cflags:

Is this normal?

Same problem here in Kubuntu 8.10, Kde 4.2:

Could not parse the XML file ().

Experiencing the same problem on Gentoo Kde 4.2.0

Same problem. Debian KDE 4.2.0

Same problem on Kubuntu 9.04 (JJ) alpha-4 and KDE 4.2.0.

same problem here, how can status be NEW when this bug is being dragged from KDE 4.04??

If I may say , this bug is not always reproducable. I am able to see my network interfaces on my laptop but not on my desktop. On both of them I am using the exact same configuration ( Gentoo Linux + kde-4.2 ) . Maybe there is another thing in the "back" that does the dirty work?

Patch from Tomas Chvatal:
http://git.overlays.gentoo.org/gitweb/?p=proj/kde.git;a=blob;f=kde-base/knetworkconf/files/backends-scriptsdir.patch

   1 --- knetworkconf/backends/CMakeLists.txt.orig   2009-02-27 10:22:42.000000000 -0600
   2 +++ knetworkconf/backends/CMakeLists.txt        2009-02-27 10:22:58.000000000 -0600
   3 @@ -1,4 +1,4 @@
   4 -
   5 +set(scriptsdir "${DATA_INSTALL_DIR}/knetworkconf/backends")
   6 
   7 
   8  ########### install files ###############

(In reply to comment #18)
> Patch from Tomas Chvatal:
> http://git.overlays.gentoo.org/gitweb/?p=proj/kde.git;a=blob;f=kde-base/knetworkconf/files/backends-scriptsdir.patch

The patch works for me (it does not display any error), however no interfaces are listed.

In gentoo this patch is already in portage

see http://bugs.gentoo.org/show_bug.cgi?id=260098

But still no interfaces are visible in the network configuration window

(In reply to comment #20)
> In gentoo this patch is already in portage
> 
> see http://bugs.gentoo.org/show_bug.cgi?id=260098
> 
> But still no interfaces are visible in the network configuration window

OK, does the system monitor - network widget work for you? I suppose that since no network interfaces are shown in the network configuration window, the widget does not work either.

*** Bug 184356 has been marked as a duplicate of this bug. ***

Created attachment 32063 [details]
Crash report of segfault in knetworkconfig

I'm also getting no interfaces.  The backends seem to work. I'm not sure if it's related but if I try to open a context menu in the blank "Available Network Interfaces" area of the window (as super-user) it segfaults.  Attached is the crash report and below is the shell output:

--get XML:                                                                
<?xml version='1.0' encoding='UTF-8' standalone='yes'?>                   
<!DOCTYPE network []>                                                     

<network>

  <dialinstalled>1</dialinstalled>
  <smbinstalled>1</smbinstalled>  
  <smbuse>0</smbuse>              

  <nameserver>192.168.0.254</nameserver>

  <statichost>
    <ip>127.0.0.1</ip>
    <alias>localhost</alias>
    <alias></alias>         
    <alias>localhost.localdomain</alias>
  </statichost>                         
  <statichost>                          
    <ip>192.168.0.2</ip>                
    <alias>Laptop-PC.HOME</alias>       
    <alias>Laptop-PC</alias>            
  </statichost>                         

  <interface type='modem'>

    <dev>tunl0</dev>
    <enabled>0</enabled>
  </interface>          

  <interface type='modem'>

    <dev>ppp0</dev>
    <enabled>0</enabled>
  </interface>          

  <interface type='loopback'>

    <dev>lo</dev>
    <enabled>1</enabled>
  </interface>          

  <interface type='wireless'>

    <dev>wlan0</dev>
    <enabled>0</enabled>
    <hwaddr>00:1b:63:c5:d1:5c</hwaddr>
  </interface>                        

  <interface type='ethernet'>

    <dev>eth0</dev>
    <enabled>1</enabled>
    <hwaddr>00:1b:63:91:3d:6c</hwaddr>
  </interface>                        

  <profiledb>
  </profiledb>

</network>

<!-- GST: end of request -->

XML -d list_ifaces: <?xml version='1.0' encoding='UTF-8' standalone='yes'?>
<!DOCTYPE network-ifaces []>                                               

<network-ifaces>

  <interface>
    <dev>tunl0</dev>
    <enabled>0</enabled>
    <type>modem</type>  
  </interface>          

  <interface>
    <addr>127.0.0.1</addr>
    <dev>lo</dev>         
    <enabled>1</enabled>  
    <mask>255.0.0.0</mask>
    <type>loopback</type> 
  </interface>            

  <interface>
    <dev>wlan0</dev>
    <enabled>0</enabled>
    <hwaddr>00:1b:63:c5:d1:5c</hwaddr>
    <type>wireless</type>             
  </interface>                        

  <interface>
    <addr>192.168.0.2</addr>
    <bcast>192.168.0.255</bcast>
    <dev>eth0</dev>             
    <enabled>1</enabled>        
    <hwaddr>00:1b:63:91:3d:6c</hwaddr>
    <mask>255.255.255.0</mask>        
    <type>ethernet</type>             
  </interface>                        

</network-ifaces>

<!-- GST: end of request -->

Segmentation fault

I only get this at Konsole:

kcmshell4 kcm_knetworkconfmodule
--get XML:
Then error message appears: Could not parse xml file ().
Please someone fix this. This is critical bug. What is the benefit of plasma and fancy icons if user cannot configure network interface :(.

This bug is already 10 months old. I think it will never be fixed.

(In reply to comment #25)
> This bug is already 10 months old. I think it will never be fixed.

I somewhere seen that correct NetworkManager integration postponed to KDE-4.3

same problem here ! 
https://bugs.kde.org/show_bug.cgi?id=185966 
is also a duplicated of this one? if so, please mark it

*** Bug 192394 has been marked as a duplicate of this bug. ***

This bug present in KDE 4.2.3 openSUSE 11.0 too

*** Bug 194134 has been marked as a duplicate of this bug. ***

*** Bug 185966 has been marked as a duplicate of this bug. ***

that code uses qt deprecated code, being kept for compatibility with qt3, and seems to be quickly ported to qt4. I guess it needs a major rewrite.

SVN commit 976040 by modax:

Steal patch from gentoo to fix problems with backends in knetworkconf.
Thanks to Martin Alfke for making me aware of it and testing.

BUG: 163578


 M  +1 -1      CMakeLists.txt  


WebSVN link: http://websvn.kde.org/?view=rev&revision=976040

*** Bug 197494 has been marked as a duplicate of this bug. ***

So what version of knetworkconf will this be fixed in?

(In reply to comment #21)
> > But still no interfaces are visible in the network configuration window
> 
> OK, does the system monitor - network widget work for you? I suppose that since
> no network interfaces are shown in the network configuration window, the widget
> does not work either.

To answer this question from 6 months back:  No, the widget doesn't work either.  I see no network interfaces in System Settings > Network Settings > Network Settings, and the System monitor - network widget also shows no data.  Although, when I start it it opens two windows, which is interesting since I have two interfaces (besides lo).  But the windows are empty, and when I try to configure them, the list of available interfaces is also empty.

This is with KDE 4.3.1 in Debian.

Thanks,
Andrew.

So to be clear, for me this bug is not yet fixed in KDE 4.3.1.  Thanks, A.

Same bug in KDE 4.2.4 Slackware 13.0

OK, so now this bug is:
Status:  	RESOLVED
Resolution: 	FIXED 

How does one go about finding out what path the fix will take before finally reaching a computer near me?

Bug still present in KDE 4.3.3 Ubuntu 9.10.  Is it supposed to be fixed by now?

So who is QA for this bug?  Can anyone besides them re-open this bug?

Reopen since comments suggest this bug is still present.

I am using KDE 4.4.4 in Sabayon Linux x86_64 2.6.34-sabayon kernel. If I select Kickoff > Computer > System Settings > Network Settings, a window titled "Detecting Your Current Platform" pops up with the message "Please wait while detecting your current platform..." and, immediately after, on top of it pops up another window titled "Error - System Setti..." with the message "Could not parse the XML file ()."

I confirm this bug on my laptop Gentoo, KDE-4.4.95 (and all earlier versions since one year at least).

I upgraded from KDE 4.4.4 to 4.5.1 today and am still experiencing this problem under Sabayon Linux.

$ uname -a
Linux meshedgedx 2.6.34-sabayon #1 SMP Fri Jun 4 18:01:48 BST 2010 x86_64 Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz GenuineIntel GNU/Linux

$ eix kde-meta
[I] kde-base/kde-meta
     Available versions:  
        (4.4)   4.4.5
        (4.5)   (~)4.5.1
        {accessibility aqua kdeprefix nls sdk semantic-desktop}
     Installed versions:  4.5.1(4.5)(03:31:44 12/09/10)(accessibility semantic-desktop -aqua -kdeprefix -nls -sdk)
     Homepage:            http://www.kde.org/
     Description:         KDE - merge this to pull in all split kde-base/* packages

The "knetworkconf" module is unmaintained, and has been replaced with the networkmanagement plasmoid.

If this issue still needs to be addressed with a recent version of this plasmoid, please add a comment, or file a new report for product "Network Management".

http://websvn.kde.org/?revision=1158822&view=revision

I currently have KDE 4.9.0 installed (upgraded from previous versions of KDE in turn over the years).

System Settings > Network Settings has five icons in the left column:

- Network Connections
- Proxy
- Connection Preferences
- Service Discovery
- Network Settings

However the last entry, Network Settings should not be there: it was for the knetworkconf module, which is obsolete (see Comment 46).

If I selected System Settings > Network Settings, a window titled "Detecting Your Current Platform" popped up with the message "Please wait while detecting your current platform..." and, immediately after, on top of it pops up another window titled "Error - System Settings" with the message "Could not parse the XML file ()."

The Gentoo command line utility 'eix' (yes, I used the command 'eix-update' to ensure its database is up-to-date) did not list the obsolete package kde-base/knetworkconf:

# eix knetworkconf
No matches found.
#

which is why I have been so perplexed about this problem, as I apparently did not have knetworkconf installed. Today I suddenly decided to try the command 'emerge --search' instead:

$ emerge --search knetworkconf
Searching...    
[ Results for search key : knetworkconf ]
[ Applications found : 1 ]

*  kde-base/knetworkconf
      Latest version installed: 4.5.4
      Homepage:      http://www.kde.org/
      Description:   KDE Control Center module to configure network settings
      License:       GPL-2

So I unmerged knetworkconf:

$ sudo emerge -C knetworkconf
Password: 
 * This action can remove important packages! In order to be safer, use
 * `emerge -pv --depclean <atom>` to check for reverse dependencies before
 * removing packages.

 kde-base/knetworkconf
    selected: 4.5.4 
   protected: none 
     omitted: none 

All selected packages: kde-base/knetworkconf-4.5.4

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

>>> Waiting 5 seconds before starting...
>>> (Control-C to abort)...
>>> Unmerging in:  5 4 3 2 1 
>>> Unmerging (1 of 1) kde-base/knetworkconf-4.5.4...
 * 
 * Directory symlink(s) may need protection:
 * 
 *      /usr/share/doc/HTML/en/kcontrol/knetworkconf/common
 * 
 * Searching all installed packages for files installed via above symlink(s)...
 * 
 * The above directory symlink(s) are all safe to remove. Removing them now...
 * 

 * GNU info directory index is up-to-date.

$

And now I no longer have that obsolete fifth icon Network Settings in System Settings > Network Settings, and thus, after trying for several years, finally got rid of that damned error message "Could not parse the XML file ()."!