@chris41: Please try creating a new user, and trying to reproduce.

With a new user, I can't generate the problem. Does this suggest a solution?

Sorry for my late reply.
But i am into hospital right now.

I finally "solved" the issue by a fresh install of Mandriva.

@chris41: Yes, this means the problem is with your user. Please try running the following command outside KDE:

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rm -rf /var/tmp/kdecache-$USER/

Erasing /var/tmp/kdecache-chris didn't work. Same problem appears when KDE is then restarted. Something in my .kde directory then?

Actually, it turns out the problem arises on the new user account also. It just takes longer to appear when there are few windows open or few previous opens and closes of kde applications. With the system monitor on, I see that when konsole opens and closes properly, a single process appears on the monitor. When it hangs, three processes start, all named "konsole". When the konsole window displaying the red error message is closed, one of the konsole processes remains active, though not associated with any window. While that process is active, attempting to start konsole via an icon-click does not open any window. If that residual process is killed, konsole will open properly with an icon-click --- for a while, after which the bad behavior returns.

In this case, assuming all the latest package updates have been installed, and no dependencies are broken, please file a bug with your distribution, as I have never been able to reproduce this.

Killing all running konsole processes fixes the issue temporarily. I dont know the konsole internals but it seems a hanging konsole process is causing this.

I've got the same problem on Arch Linux. I'm running KDE 4.4.4. My arch linux is up to date.

Has anyone figured this out yet? I think it's a bug.

look for the summaryrc file and delete all mention of SpecialDates plugin

As reported above, I had this problem with Ubuntu, 64 bit, KDE 4.4.2. I was running KDE under the gdm display manager. I have since switched to kdm, and since that switch the problem has not recurred.

annew wrote:look for the summaryrc file and delete all mention of SpecialDates plugin

find / -name summaryrc

produces nothing on my system, which is archlinux.

I arrived to this thread after having the same konsole error when starting it from an icon in the Desktop which tells konsole to run a bash script.

In case it can help solve the problem for somebody, I solved the problem inserting the following line at the beginning of the bash script:

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#!/bin/bash

Without this line, konsole gives the same error described in this thread.

greghaynes wrote:Killing all running konsole processes fixes the issue temporarily. I dont know the konsole internals but it seems a hanging konsole process is causing this.

Yes, it also happens the very same thing to me. If you press Alt+F2, click on the "System activity" icon and type "konsole" in the filter, you'll see, at least, two konsole processes. One having the default konsole icon which is the process attached to the Konsole window that shows the red message. The other one is like a zombie process that screws everything up. So, if you close the Konsole window, you'll see the former terminates. Afterwards, you can kill the other konsole process. Now you should be able to start konsole normally seamlessly.

Another workaround I found is to open Dolphin. Then press F4 to open an integrated konsole and type "konsole&". This will open an independent Konsole window. Afterwards, you can press F4 again to close the Dolphin integrated konsole.

I hope it helps!

I have had the same issue for a few weeks now on Arch x86_64.

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Warning: Could not start program '/bin/bash' with arguments '/bin/bash'.

2.6.37-ARCH x86_64 Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz (Sandy Bridge) with latest KDE.