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MDAnalysisがインストールできないときの対処

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概要

MDAnalysisのcondaを使ったインストールで失敗したので、対処法を書いておきます。

状況

MDAnalysisのインストールをチュートリアル通りに進めていたが、

conda install --yes -n mdaenv MDAnalysis MDAnalysisTests

のところで、以下のエラーが出た。

Solving environment: failed

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

  - mdanalysis
  - mdanalysistests

Current channels:

  - https://repo.anaconda.com/pkgs/main/linux-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/free/linux-64
  - https://repo.anaconda.com/pkgs/free/noarch
  - https://repo.anaconda.com/pkgs/r/linux-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://repo.anaconda.com/pkgs/pro/linux-64
  - https://repo.anaconda.com/pkgs/pro/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.

対処法

リポジトリのチャンネルを指定する。-c conda-forge

conda install -c conda-forge --yes -n mdaenv MDAnalysis MDAn
alysisTests

これで、mdaenvにcondaをつかってMDAnalysisをインストールできた。

原因

インストールの最初にあるこのコマンドがうまく行っていなかったと考えられる。

conda config --add channels conda-forge
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