arch 64位下直接运行android emulator会出现错误：“Failed to start emulator: Cannot run program "xxxx/sdk/tools/emulator": error=2, No such file or directory

这时要解开/etc/pacman.conf里的multilib的注释

执行pacman -Syu

然后安装

lib32-glibc
lib32-libstdc++5

或者还有：

lib32-libncurses
lib32-zlib