Terminal Can'；"；brew链接pixman cairo“；

我想在python（2.7）中使用igraph，所以我必须安装cairo，它需要py2cairo和pixman。不得不使用自制软件（很明显，py2cairo安装存在一些问题，请参阅）

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我试图删除pixman文件，但没有成功；找不到任何建议，有人可以帮忙吗？

我也有同样的问题。你修过这个吗？嗨！不我只是把它放在那里，从来没有解决过这个问题！啊！同样的问题，需要帮助！

$ brew install py2cairo
Error: You must `brew link pixman cairo' before py2cairo can be installed
Linking /usr/local/Cellar/pixman/0.30.0... Warning: Could not link pixman. Unlinking...

Error: Could not symlink file: /usr/local/Cellar/pixman/0.30.0/include/pixman-1/pixman.h
Target /usr/local/include/pixman-1/pixman.h already exists. You may need to delete it.
To force the link and overwrite all other conflicting files, do:
brew link --overwrite formula_name

To list all files that would be deleted:
brew link --overwrite --dry-run formula_name
$ brew link --overwrite formula_name
Error: No such keg: /usr/local/Cellar/formula_name