I have trouble with network management plasmoid in kde 4.6 and wanted debug it, how can i do it by right way? (IDE - KDevelop 4.2)

What problems are you having with the Network Management applet? It uses a seperate, KDE Daemon service to interact with NetworkManager.

You should probably start by running it from the commandline using plasmoidviewer, with debug symbols on (kdebugdialog).

I found that networkmanagment doesn't read vpn-password from kwallet and thus couldn't establish connection.
I tried to build applet from source but there are many several shared libraries found in result. I don't know which module I should use as entry point to start debuging.

PS. By now I setup password storage option to "Always promt", but it inconvenient.

Ok, this is an issue with the KDE Daemon module responsible for interfacing with NetworkManager. Can you please try reproducing under a new user? If you can, please file a bug report at bugs.kde.org, including information on the type of VPN you are configuring, and any other non-standard options you need to set.

This is a bug, it was same behavior for new user too. I think this problem happens just with me, because nobody reported about it.
I want find out wrong code in sources to ensure that my bug is common trouble.

Network Management code is located in a KDE Git repository.

It can be cloned from git://anongit.kde.org/networkmanagement