Conda 包在新创建的 env 上发现冲突并且无法显示它们

Question

我在 Anaconda 中创建了一个新环境后尝试安装 menpodetect

conda create --name detector
conda activate detector
conda install -c menpo menpodetect

Anaconda 云：https://anaconda.org/menpo/menpodetect

这是conda install -c menpo menpodetect

的输出

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: -
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.\
failed

UnsatisfiableError:

python --version -> Python 3.7.4

conda list 为空（因为环境刚刚创建）

怎么了？

编辑---------------------------------------- ---------------------------------------------- ----

conda install -c conda-forge menpodetect returns

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

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

  - menpodetect

Current channels:

  - https://conda.anaconda.org/conda-forge/win-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/win-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/win-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://repo.anaconda.com/pkgs/msys2/win-64
  - https://repo.anaconda.com/pkgs/msys2/noarch

To search for alternate channels that may provide the conda package you're
looking for, navigate to

    https://anaconda.org

and use the search bar at the top of the page.

Answer 1

尝试从 conda-forge 频道安装它。作者大约一年前开始迁移到该频道。

conda install -c conda-forge menpodetect

Answer 2

menpodetect 团队已放弃对 windows 和 does not plan to reintroduce it. The only version still available for windows is the 3 year old 0.5 version, as you can see on the anaconda website 的支持。

对于这么旧的包，可能会发生并非所有依赖项仍然可以从默认渠道获得的情况。但是，如果您使用 free channel，您仍然可以安装它，其中包含 2017 年 9 月之前的软件包。它已从 conda 默认值中删除 4.7。

使用：

conda install -c free -c menpo menpodetect

然而，根据您的用例，切换到 Linux 或 OSX 可能更可取，以便能够使用 James 的建议安装最新版本

Conda 包在新创建的 env 上发现冲突并且无法显示它们

Conda package finds conflicts on newly created env and fails to show them

python

anaconda

conda

menpo