最近升级到Mac OSX Mavericks了吗？好了，完成操作后，您需要更新MacPorts才能使其正常运行。

要更新MacPorts，只需在Terminal中执行以下命令：

sudo port -v selfupdate

终端将继续独自运行一堆脚本，然后您将遇到以下输出错误：

Command failed: cd /opt/local/var/macports/sources/rsync.macports.org/release/tar包s/base && CC=/usr/bin/cc ./configure --prefix=/opt/local --with-tclpackage=/Library/Tcl --with-install-user=root --with-install-group=admin --with-directory-mode=0755 --enable-readline && make && make install SELFUPDATING=1

Exit code: 77
Error: /opt/local/bin/port: port selfupdate failed: Error installing new MacPorts base: command execution failed

这意味着您需要更新Xcode并安装"命令行开发人员工具"…只需执行以下操作：

sudo xcode-select --install

您将提示以下消息：

xcode-select: note: install requires for command line developer tools. Would you like to install the tools now?

只需单击"安装"即可完成操作！