引言
brew install mono-libgdiplus找不到包。搜索类似报名、搜索已经删除的包、搜索github都找不到。
Warning: No available formula with the name "mono-libgdiplus".
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching for a previously deleted formula (in the last month)...
Error: No previously deleted formula found.
==> Searching taps on GitHub...
Error: No formulae found in taps.这种情况大概率是因为镜像源陈旧或是配置错误，也不排除网络访问镜像源不稳定造成的。
正文
解决办法也比较简单，换个镜像源试一试。更换镜像源要注意之前设置过环境变量也需要改。
这里推荐清华大学开源镜像，更换镜像源配置写的比较详细：tuna homebrew 。
如果更换了镜像源还是找不到包，试试运行homebrew自检命令：brew doctor ，参照自检结果，执行相应的修复命令。