## Observation

```
# zypper in -t pattern gnome kde non_oss xfce 
Loading repository data...
Warning: Repository 'openSUSE-Leap-15.0-Update' appears to be outdated.
Consider using a different mirror or server.
Warning: Repository 'openSUSE-Leap-15.0-Update-Non-Oss' appears to be outdated.
Consider using a different mirror or server.
Reading installed packages...
Resolving package dependencies...

Problem: pattern:gnome-20180321-lp150.1.1.x86_64 requires patterns-gnome-gnome,
but this requirement cannot be provided
  uninstallable providers:
patterns-gnome-gnome-20180321-lp150.1.1.x86_64[openSUSE-Leap-15.0-1]
                   patterns-gnome-gnome-20180321-lp150.1.1.x86_64[repo-oss]
 Solution 1: Following actions will be done:
  do not install pattern:gnome-20180321-lp150.1.1.x86_64
  do not install pattern:kde-20170319-lp150.7.1.noarch
 Solution 2: deinstallation of patterns-yast-x11_yast-20180409-lp150.1.1.x86_64
 Solution 3: break pattern:gnome-20180321-lp150.1.1.x86_64 by ignoring some of
its dependencies
```


## Problem

Solution 2 fixes it, so why do I need to remove "patterns-yast-x11_yast"?