Unable to open KVM due to "Requiring namespace 'Gtk' version '4.0', but '3.0' is already loaded"

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1

Hello

I installed Tumbleweed about 3 days ago and today I installed KVM patterns through Yast and I’m unable to open KVM due to error “Requiring namespace ‘Gtk’ version ‘4.0’, but ‘3.0’ is already loaded”, how can I load the proper Gtk? I did do a zypper dup before and after installation, also this is what i have for repos

| Alias | Name | Enabled | GPG Check | Refresh
–±--------------------±----------------------------±--------±----------±-------
1 | openSUSE-20211001-0 | openSUSE-20211001-0 | Yes | (rp) Yes | No
2 | repo-debug | openSUSE-Tumbleweed-Debug | No | ---- | ----
3 | repo-non-oss | openSUSE-Tumbleweed-Non-Oss | Yes | (rp) Yes | Yes
4 | repo-oss | openSUSE-Tumbleweed-Oss | Yes | (rp) Yes | Yes
5 | repo-source | openSUSE-Tumbleweed-Source | No | ---- | ----
6 | repo-update | openSUSE-Tumbleweed-Update | Yes | (rp) Yes | Yes

2

Alas, your repo list is rather useless because it is the URLs that matter, When you want to show your repo list, use

zypper lr -d

And please use CODE tags for that. It is an important, but not easy to find feature on the forums.
It is the # button in the tool bar of the post editor. When applicable copy/paste complete, that is including the prompt, the command, the output and the next prompt.

An example is here: Using CODE tags Around your paste.

3 
zypper lr -d
# | Alias               |  Name                        | Enabled | GPG Check | Refresh | Priority |  Type   | URI                                                      |  Service
--+---------------------+-----------------------------+---------+-----------+---------+----------+--------+----------------------------------------------------------+--------
1  | openSUSE-20211001-0 | openSUSE-20211001-0         | Yes     | (rp)  Yes  | No      |   99     | rpm-md |  cd:/?devices=/dev/disk/by-id/wwn-0x5001480000000000      | 
2 |  repo-debug          | openSUSE-Tumbleweed-Debug   | No      | ----      |  ----    |   99     | NONE   |  http://download.opensuse.org/debug/tumbleweed/repo/oss/  | 
3 |  repo-non-oss        | openSUSE-Tumbleweed-Non-Oss | Yes     | (rp) Yes  |  Yes     |   99     | rpm-md |  http://download.opensuse.org/tumbleweed/repo/non-oss/    | 
4 |  repo-oss            | openSUSE-Tumbleweed-Oss     | Yes     | (rp) Yes  |  Yes     |   99     | rpm-md |  http://download.opensuse.org/tumbleweed/repo/oss/        | 
5 |  repo-source         | openSUSE-Tumbleweed-Source  | No      | ----      |  ----    |   99     | NONE   |  http://download.opensuse.org/source/tumbleweed/repo/oss/ | 
6 |  repo-update         | openSUSE-Tumbleweed-Update  | Yes     | (rp) Yes  |  Yes     |   99     | rpm-md |  http://download.opensuse.org/update/tumbleweed/          |
4

The problem is libgtksourceview-5-0, get rid of it and install libgtksourceview-3 and or libgtksourceview-4 and the necessary dependencies. This only happens with a fresh install, older updated TW are not affected.
There is already a bug report about it.
https://bugzilla.opensuse.org/show_bug.cgi?id=1191356

5

I do not know much about KVM, so better wait for others. I have one advice though. Better disable the first repo, the one that starts with cd:/ … It is the install medium and you do not need it now the system has access to the on-line repos. And when it is enabled, the system will ask for it every time you need the repos.

6

this is issue is solved as I can now deploy VM’s. I did as swannema recommended which was remove libgtksourceview-5-0 and in my case I installed libgtksourceview-4

7

Sorry for digging this solved thread but could you provide the steps to solve it? Tried that approach and it didn’t work.

Also removed every libgtksourceview, and install 3, or 4 and still get the same message.

Thanks

8

@nmytik

are you on thumbleweed? how did you uninstall libgtksourceview-5-0? I uninstalled using YaST2, but before uninstall I verified that YaST was set to “Cleanup when deleting packages” which I found on the “Options” menu, then in YaST I just searched for libgtksourceview-4 and thats it, I’m sure I didn’t do a reboot.
I did read on reddit that another solution is to reinstall tumbleweed but have it update all packages during the installation process

9

THANK YOU! That was indeed the last piece of the puzzle!

I was uninstalling with zypper, doing the YaST thing did solve the problem. However, it showed me 3 options to remove the libgtksourceview package, after choosing the first one it did the trick.

Again, thank you!