Unable to run konqueror on UbuntuMATE Linux 20.10

[Stefano Crocco]

On lunedì 22 marzo 2021 23:34:58 CET Bret Busby wrote:
> Hello.
> 
> I have konqueror installed on UbuntuMATE Linux 20.10 .
> 
> When I try to run konqueror, I get the following error message.
> 
> "
> The requested operation could not be completed
> Cannot Initiate the konq Protocol
> Technical Reason: Unable to Create io-slave
> 
> Details of the Request:
> URL: konq:blank
> Protocol: konq
> Date and Time: Tuesday, 23 March 2021 5:48:52 AM AWST
> Additional Information: klauncher said: Unknown protocol 'konq'.
> Description:
> The io-slave which provides access to the konq protocol could not be
> started. This is usually due to technical reasons.
> Possible Causes:
> klauncher could not find or start the plugin which provides the
> protocol.This means you may have an outdated version of the plugin.
> Possible Solutions:
> Update your software to the latest version. Your distribution should
> provide tools to update your software.
> Contact your appropriate computer support system, whether the system
> administrator, or technical support group for further assistance.
> "
> 
> Help -> About Konqueror shows the version to be
> Version 20.08.1
> 
> Synaptic shows the installed version to be the latest version available
> for UbuntuMATE 20.10 .
> 
> What do I need to do, in order to get konqueror operational on this system?
> 
> Thank you in anticipation.

First of all, the error you're seeing, while unpleasant, doesn't actually stop 
you from using Konqueror, since it only affects the introduction page. Just 
enter the address you want to visit in the address bar and press "enter".

What you're experiencing should only happen if your default web engine in 
Konqueror is not WebEngine. To check this, open the Konqueror configuration 
dialog (Settings menu -> Configure Konqueror) and check the "Default web 
browser engine" field. If it is set to WebKit or KHTML, select WebEngine. 
Unfortuntately, this means that you won't be able to use a different web engine 
and, at the same time, see the introduction page (this issue has been fixed in 
a more recent version of Konqueror).

If you don't see WebEngine among the alternatives for the "Default web browser 
engine", then you should check whether your distribution provides a 
webenginepart package. In that case, install it and proceed as described 
above. In this case (assuming you installed Konqueror using your distribution 
package system), I suggest you to file a bug report for UbuntuMATE, as 
webenginepart is required by Konqueror (it actually is a part of Konqueror) 
and you shouldn't be able to install Konqueror without it.

Stefano