arch 升级出错，求助

输出：

[1] arch@arch_me>sudo pacman  -Syu
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
:: Starting full system upgrade...
:: Replace kdegraphics-okular with extra/okular? [Y/n] y
:: Replace libastro with extra/marble? [Y/n] y
resolving dependencies...
looking for conflicting packages...
:: marble and libmarble4 are in conflict. Remove libmarble4? [y/N] y
error: failed to prepare transaction (could not satisfy dependencies)
:: libkgeomap4: removing libmarble4 breaks dependency 'libmarble4'
[1] arch@arch_me>sudo pacman -R libmarble4
checking dependencies...
error: failed to prepare transaction (could not satisfy dependencies)
:: libkgeomap4: removing libmarble4 breaks dependency 'libmarble4'

今天升级 arch ，出错。

不知道该如何解决， google 了一下，也没有找到好方法。

不知各位有没有什么解决办法？

PS:大概有 4 、 5 天没升级，也没多长时间呀

PS2:

arch@arch_me>pacman -Qi libmarble4
Name            : libmarble4
Version         : 15.08.3-2
Description     : KDE4 Marble libraries
Architecture    : x86_64
URL             : http://kde.org/applications/education/marble/
Licenses        : GPL  LGPL  FDL
Groups          : None
Provides        : kdeedu-marble
Depends On      : qtwebkit  libastro  marble-data
Optional Deps   : gpsd: GPS support
                  libwlocate: WLAN based geolocation
Required By     : libkgeomap4
Optional For    : None
Conflicts With  : kdeedu-marble
Replaces        : None
Installed Size  : 12.82 MiB
Packager        : Antonio Rojas <arojas@archlinux.org>
Build Date      : Tue 08 Dec 2015 10:59:04 PM CST
Install Date    : Thu 27 Oct 2016 11:49:14 PM CST
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature

arch@arch_me>pacman -Si libmarble4
error: package 'libmarble4' was not found