树莓派上的archlinux很久没滚，一滚发现报错：
:: Synchronizing package databases...
testing is up to date
core is up to date
extra is up to date
community is up to date
archlinuxfr is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for inter-conflicts...
error: failed to prepare transaction (could not satisfy dependencies)
:: package-query: requires pacman<4.3
解决方案如下:
主要就这一句:pacman -Rsn yaourt package-query
卸掉再升就ok了。