我正在尝试升级小学，但是当我这样做时，我遇到了这个错误，我不知道如何解决这个问题
trying to overwrite '/usr/share/backgrounds/elementaryos-default', which is also in package elementary-os-prerelease 0.3-0~15~saucy1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/elementary-wallpapers_0.1.4-0~43~ubuntu0.3.1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
如果有人知道，请停止！