我正在尝试安装ImageMagick和RMagic,因为它们在OS X Lion升级后无法正常工作。 当我运行以下命令时:
brew install imagemagick
我遇到了错误
Error: You must `brew link libpng' before imagemagick can be installed
但是当我运行如错误消息中所提到的brew link libpng
时,我会得到以下结果:
Error: You must `brew link libpng' before imagemagick can be installed
Radek-Macs-MacBook-Pro-3:sharelock-staging radek$ brew link libpng
Linking /usr/local/Cellar/libpng/1.5.13... Warning: Could not link libpng. Unlinking...
Error: Could not symlink file: /usr/local/Cellar/libpng/1.5.13/include/pnglibconf.h
/usr/local/include/pnglibconf.h may already exist.
/usr/local/include may not be writable.
如何解决这个问题?我已经连续两天在尝试解决RMagic的问题,但是一直没有成功...真是噩梦...
brew unlink libname
,我会得到Error: No such keg: /usr/local/Cellar/libname
的错误。我该如何解决这个问题? - user984621unlink
命令吗?因为你展示的错误信息只会由link
命令提示。 - marcus erroniusunlink
,然后link
。 - marcus erronius