Updating Anaconda fails: Environment Not Writable Error

问题

I'm trying to update Anaconda and its packages using conda update --name root conda, but it fails every time.

Error message : EnvironmentNotWritableError: The current user does not have write permissions to the target environment. environment location: C:\ProgramData\Anaconda3

Environment location: C:\ProgramData\Anaconda3. I replaced the root with base, still I get the same error.

Any help?

回答1:

start your command prompt with run as administrator

回答2:

If you get this error under Linux when running conda using sudo, you might be suffering from bug #7267:

When logging in as non-root user via sudo, e.g. by:

sudo -u myuser -i

conda seems to assume that it is run as root and raises an error.

The only known workaround seems to be: Add the following line to your ~/.bashrc:

unset SUDO_UID SUDO_GID SUDO_USER

...or unset the ENV variables by running the line in a different way before running conda.

If you mistakenly installed anaconda/miniconda as root/via sudo this can also lead to the same error, then you might want to do the following:

sudo chown -R username /path/to/anaconda3

Tested with conda 4.6.14.

回答3:

If you face this issue in Linux, one of the common reasons can be that the folder "anaconda 3" or "anaconda 2" has root ownership. This prevents other users from writing into the folder. This can be resolved by changing the ownership of the folder from root to "USER" by running the command:

sudo chown -R $USER:$USER anaconda 3

or sudo chown -R $USER:$USER <path of anaconda 3/2 folder>

Note: How to figure out whether a folder has root ownership? -- There will be a lock symbol on the top right corner of the respective folder. Or right-click on the folder->properties and you will be able to see the owner details

The -R argument lets the $USER access all the folders and files within the folder anaconda 3 or any respective folder. It stands for "recursive".

回答4:

On Windows, search for Anaconda PowerShell Prompt. Right click the program and select Run as administrator. In the command prompt, execute the following command:

conda update -n base -c defaults conda

Your Anaconda should now update without admin related errors.

回答5:

I had the same issue and the base environment was in C:\ProgramData\Anaconda3. This is the case, when Anaconda is installed for all users.

As a solution, I re-installed Anaconda just for me and now the base environment is in \AppData\Local\Continuum\anaconda3. This now can be updated via conda update without admin privileges.

回答6:

As an alternative, I would suggest looking at your conda config file.

Reason

Sometimes for creating a virtual env at a specified location other than the pre-defined path at ~/anaconda3/envs we append the conda config file using: conda config --append envs_dirs /path/to/envs where envs_dirs is a specified function in config file for allocating different paths where conda can find your virtual envs. Removing a recently added path in this config file may solve the problem.

Solution

$:> conda config --show envs_dirs

    envs_dirs:
    - /home/some_recent_path    # remove this
    - /home/.../anaconda3/envs

Note the value specifing a different directory other than the predefined location, and remove it using

$:> conda config --remove envs_dirs /home/some_recent_path

Now the config file envs_dirs is set to default location of envs. Try creating a new env now.

回答7:

Deleting file .condarc (eg./root/.condarc) in the user's home directory before installation, resolved the issue.

回答8:

In my case somehow CONDA_ENVS_PATH was removed, so I was having NotWritableError. So I fixed the error by specifying

CONDA_ENVS_PATH=~/my-envs:/opt/anaconda/envs

in the .bashrc file

回答9:

I was also suffered by same problem. I resolved the problem by reinstalling anaconda(While installation at this time I selected "just for me" as user) and my problem was solved.Try the same

回答10:

I had installed anaconda via the system installer on OS X in the past, which created a ~/.conda/environments.txt owned by root. Conda could not modify this file, hence the error.

To fix this issue, I changed the ownership of that directory and file to my username:

sudo chown -R $USER ~/.conda

回答11:

open the anaconda prompt as administrator and enter

回答12:

this line of code on your terminal, solves the problem

$ sudo chown -R $USER:$USER anaconda 3

回答13:

Open this folder "C:\ProgramData\" and right-click on "\Anaconda3". go to properties -> security and check all the boxes for each user. This worked for me.

回答14:

try running the powershell as an administrator

来源：https://stackoverflow.com/questions/55290271/updating-anaconda-fails-environment-not-writable-error

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Anaconda