ubuntu安装libpng-dev失败,libpng12-dev : Depends: libpng12-0 (= 1.2.50-1ubuntu2.14.04.3) but 1.2.50-2+deb8u3 is to be installed 依赖问题,需要先安装libpng apt install libpng12-0=1.2.54-1ubuntu1 问题解决。 赞赏微信赞赏支付宝赞赏