dpkg: error processing archive /var/cache/apt/archives/libsdl1.2-dev_1.2.15+dfsg2-5_amd64.deb (--unpack): trying to overwrite '/usr/share/man/man3/SDL_AddTimer.3.gz' 解决方案
1. sudo dpkg -i --force-overwrite /var/cache/apt/archives/libsdl1.2-dev_1.2.15+dfsg2-5_amd64.deb
2. sudo apt-get -f install libsdl1.2-dev