Conda not recognized as internal or external after creating new environment

问题

conda command was working fine from Anaconda prompt. I created a new environment for tensorflow after which it says - 'conda' is not recognized as an internal or external command,operable program or batch file.

I have checked all my PATH variables, and root, scripts and lib folder paths are added to the PATH.

It just does not recognize any commands - conda, activate, deactivate, any of these.

回答1:

I also faced the same issue. PATHs were also fine but I was unable to execute the conda command.

While installing Anaconda, I had checked ADD TO PATH option, I think that created problem.

Anaconda does not recommend to do this. You can see RED colored warning if you check the ADD TO PATH check box.

See the below 2 images.

Before checking the box

After checking the box

Finally I reinstalled the Anaconda without checking the check box ADD TO PATH then manually set the PATH.

Better is to use your own custom location for Anaconda installation as I did.

I do not know, in which system you are working. I am windows user and solved the issue as follows.

Uninstalled the currently installed Anaconda.
Created folder named C:\AnacondaPython for reinstallation of Anaconda.
Manually added the following 5 PATHS to PATH environment variable.

C:\AnacondaPython

C:\AnacondaPython\Scripts

C:\AnacondaPython\Library

C:\AnacondaPython\Library\mingw-w64\bin

C:\AnacondaPython\Library\usr\bin

Or you can just append the below PATH series.

C:\AnacondaPython;C:\AnacondaPython\Scripts;C:\AnacondaPython\Library;C:\AnacondaPython\Library\mingw-w64\bin;C:\AnacondaPython\Library\usr\bin

So finally, I opened new Terminal, and tried to create, activate & deactivate tensorflow environment.

Please check my Terminals history that is given below.

(base) C:\Users\sunil kumar>conda create --name tensorflow
Solving environment: done


==> WARNING: A newer version of conda exists. <==
  current version: 4.4.10
  latest version: 4.4.11

Please update conda by running

    $ conda update -n base conda


## Package Plan ##

  environment location: C:\AnacondaPython\envs\tensorflow


Proceed ([y]/n)? y

Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
#     $ conda activate tensorflow
#
# To deactivate an active environment, use
#
#     $ conda deactivate


(base) C:\Users\Rishikesh>conda activate tensorflow

(tensorflow) C:\Users\Rishikesh>conda deactivate

(base) C:\Users\Rishikesh>

I will suggest you reinstall your Anaconda to get rid of this issue.

Thanks.

回答2:

It happened to me as well. I created a new env and was able to switch to the new env using command conda activate . But once I was in the new env I was not able to use conda command at all, even to deactivate the env.

I just opened a new WIN's command prompt then switched to the new env and then was able to use conda command with no issues.

来源：https://stackoverflow.com/questions/49142567/conda-not-recognized-as-internal-or-external-after-creating-new-environment

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python

Anaconda