只是做了brew install graphviz在山狮这给了我这个错误
错误：无法执行：使安装（graphviz.rb：47）
以为我只是卸载它，所以跑brew uninstall graphviz ，但得到
错误：没有这样的小桶：在/ usr /本地/库/ graphviz的
然后想我会尝试brew doctor ，但它给了我这个错误：
Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected dylibs:
/usr/local/lib/libcdt.5.dylib /usr/local/lib/libcgraph.6.dylib /usr/local/lib/libgvc.6.dylib /usr/local/lib/libgvpr.2.dylib /usr/local/lib/libpathplan.4.dylib /usr/local/lib/libxdot.4.dylib
Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.
Unexpected .pc files:
/usr/local/lib/pkgconfig/libcdt.pc /usr/local/lib/pkgconfig/libcgraph.pc /usr/local/lib/pkgconfig/libgvc.pc /usr/local/lib/pkgconfig/libgvpr.pc /usr/local/lib/pkgconfig/libpathplan.pc /usr/local/lib/pkgconfig/libxdot.pc
任何想法如何解决这一问题？
