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PackagesNotFoundError: The following packages are not available from current channels的解决办法

PackagesNotFoundError: The following packages are not available from current channels的解决办法

解决方法一:将conda-forge添加到搜索路径上

首先,当出现这种报错时,应该首先尝试使用以下命令将conda-forge channel添加到你的channel列表中:

conda config --append channels conda-forge

它告诉conda在搜索软件包时也要在conda-forge channel上查看。

然后你就可以尝试利用如下命令再次安装

conda install 包名

原因在于:channel可以看成是托管python包的服务器,当无法通过标准channel获得python包时,社区驱动的conda-forge通常是一个很好的地点。大部分问题都可以利用这条语句解决。

方法二:利用报错提示,进入annaconda网站利用命令解决

当添加上述语句仍然出现错误,安装某个python包时(并不特别对于某个特定包,各种包有时都会出现这种情况 。会出现当前channel不可用,并报错:

packagesNotFoundError: The following packages are not available from current channels:

报错的完整显示:

Collecting package metadata (current_repodata.json): ...working... done Solving environment: ...working... failed with initial frozen solve. Retrying with flexible solve. Collecting package metadata (repodata.json): ...working... done Solving environment: ...working... failed with initial frozen solve. Retrying with flexible solve. PackagesNotFoundError: The following packages are not available from current channels: - igraph Current channels: - repo.anaconda/pkgs/main/win-64 - repo.anaconda/pkgs/main/noarch - repo.anaconda/pkgs/r/win-64 - repo.anaconda/pkgs/r/noarch - repo.anaconda/pkgs/msys2/win-64 - repo.anaconda/pkgs/msys2/noarch To search for alternate channels that may provide the conda package you're looking for, navigate to anaconda and use the search bar at the top of the page.

解决办法其实人家在报错中已经说了:

To search for alternate channels that may provide the conda package you're looking for, navigate to anaconda and use the search bar at the top of the page.

你需要去 anaconda 这个网址,在上方的搜索条上搜索你要安装这个包的其他channel,下边展示一下如何找igraph的其他channel 首先进入上述网址,你可以在上方看到搜索条: 我这里搜索igraph,会出现所有包名中包含“igraph”字段的包: 接着在你的命令行窗口或Anaconda Prompt窗口对应的路径下运行页面中提供的任意一条命令即可。

方法三:进入annaconda网站利用包的安装包安装

如果上述这些命令经过一一尝试都无效,那只有下载该python包对应的本地“***.bz2”本地文件,然后利用annaconda进行本地安装,需要点击上图的file,下载本机环境下对应的安装包: 把下载好的“python-igraph-0.8.3-py38h0d6bca7_2.tar.bz2”这个安装包放到anaconda存放包的目录下,如:

D/anaconda3/pkgs/~

然后执行命令:

conda install --use-local python-igraph-0.8.3-py38h0d6bca7_2.tar.bz2

即可完成安装。(bz2前的包名根据你所需要的包而不同,“python-igraph-0.8.3-py38h0d6bca7_2.tar.bz2”是我所安装的igraph)

本文标签: 解决办法packagesPackagesNotFoundErrorchannelscurrent