我正在尝试执行一个port upgrade outdated，但它会因无法修复的包冲突而停止。
有谁知道如何解决这个问题？
sudo port upgrade outdated
---> Computing dependencies for subversion-perlbindings-5.16
Error: Unable to exec port: Can't install subversion-perlbindings-5.16 because
conflicting ports are installed: subversion-perlbindings-5.12