我正在尝试安装igraph但遇到问题。我尝试了各种堆栈溢出链接，但无法正确使用。
brew install igraph
==> Installing igraph from homebrew/science
==> Downloading https://homebrew.bintray.com/bottles-science/igraph-0.7.1_3.yosemite.bottle.tar.gz
Already downloaded: Library/Caches/Homebrew/igraph-0.7.1_3.yosemite.bottle.tar.gz
==> Pouring igraph-0.7.1_3.yosemite.bottle.tar.gz
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink lib/libigraph.0.dylib
Target /usr/local/lib/libigraph.0.dylib
already exists. You may want to remove it:
rm '/usr/local/lib/libigraph.0.dylib'
To force the link and overwrite all conflicting files:
brew link --overwrite igraph
To list all files that would be deleted:
brew link --overwrite --dry-run igraph
Possible conflicting files are:
/usr/local/lib/libigraph.0.dylib
==> Summary
/usr/local/Cellar/igraph/0.7.1_3: 84 files, 6.2M
我在代码运行时的错误如下所示：
Traceback (most recent call last):
File "igraphvizz.py", line 1, in <module>
from igraph import *
File "anaconda/lib/python2.7/site-packages/igraph/__init__.py", line 34, in <module>
from igraph._igraph import *
ImportError: dlopen(anaconda/lib/python2.7/site-packages/igraph/_igraph.so, 2): Symbol not found: _iconv
Referenced from: anaconda/lib/python2.7/site-packages/igraph/_igraph.so
Expected in: dynamic lookup