无法在conda环境中安装bioconda软件包

我正试图从anaconda的Bioconda频道安装一些软件包,但即使添加了该频道,我还是遇到了以下错误:

C:\Users\matti>conda install -c bioconda pybedtools
Solving environment: failed

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

  - pybedtools

Current channels:

  - https://conda.anaconda.org/bioconda/win-64
  - https://conda.anaconda.org/bioconda/noarch
  - https://conda.anaconda.org/conda-forge/win-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.continuum.io/pkgs/main/win-64
  - https://repo.continuum.io/pkgs/main/noarch
  - https://repo.continuum.io/pkgs/free/win-64
  - https://repo.continuum.io/pkgs/free/noarch
  - https://repo.continuum.io/pkgs/r/win-64
  - https://repo.continuum.io/pkgs/r/noarch
  - https://repo.continuum.io/pkgs/pro/win-64
  - https://repo.continuum.io/pkgs/pro/noarch
  - https://repo.continuum.io/pkgs/msys2/win-64
  - https://repo.continuum.io/pkgs/msys2/noarch
  - https://conda.anaconda.org/daler/win-64
  - https://conda.anaconda.org/daler/noarch
  - https://conda.anaconda.org/anaconda-fusion/win-64
  - https://conda.anaconda.org/anaconda-fusion/noarch

其他bioconda软件包(如bowtie2)也会出现这种情况。我已经尝试了常规的pip安装和easy\u安装,但这些都不起作用。有什么想法吗?