[Solved] CommandNotFoundError: Your shell has not been properly configured to use ‘conda activate’. To initialize your shell, run…

Problem

Today I use Anaconda to activate the python virtual environment, but I got the following error message and cannot enter the virtual environment.

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

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Solution

The error is occurred because the last time we use conda activate <ENVIRONMENT> to activate the environment, and we did not use conda deactivate to exit the environment.

But if we use the conda init <SHELL_NAME> the error message said, we need to restart our terminal.

In fact, I think there is a faster solution: we can use source activate to enter the activated environment again. If the environment is you want to use, you can start to work; If not, we can use conda deactivate to exit.

Then, you can use conda activate <ENVIRONMENT> to activate any environment you want.

By the way, if you forget the names of your environments, you can use conda env list to check your environment names.

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References

• https://docs.conda.io/projects/conda/en/4.6.0/user-guide/tasks/manage-environments.html
• https://stackoverflow.com/questions/55507519/python-activate-conda-env-through-shell-script

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