I am using anaconda as below:

(base) C:\Users\xxx>conda info active environment : base active env location : C:\Users\xxx\Documents\ANACONDA shell level : 1 user config file : C:\Users\xxx\.condarc populated config files : C:\Users\xxx\.condarc conda version : 4.7.11 conda-build version : 3.18.9 python version : 3.6.9.final.0 virtual packages : base environment : C:\Users\xxx\Documents\ANACONDA (writable) channel URLs : package cache : C:\Users\xxx\Documents\ANACONDA\pkgs C:\Users\xxx\.conda\pkgs C:\Users\xxx\AppData\Local\conda\conda\pkgs envs directories : C:\Users\xxx\Documents\ANACONDA\envs C:\Users\xxx\.conda\envs C:\Users\xxx\AppData\Local\conda\conda\envs platform : win-64 user-agent : conda/4.7.11 requests/2.22.0 CPython/3.6.9 Windows/10 Windows/10.0.16299 administrator : False netrc file : None offline mode : False

Now I have 2 issues that stop my work. 1) I cannot use conda install for any package. It will give me the error in solving environment list this:

failed with initial frozen solve. Retrying with flexible solve.

then it will fail again and give message like this:

Found conflicts! Looking for incompatible packages. This can take several minutes. Press CTRL-C to abort.

Even after the checking for incompatible packages, it didn't give me the solution.

2) When I want to upgrade or downgrade conda by the command:

conda update -n base conda

or

conda install conda = 4.6.11

It will give me errors again in the solving environment, and I think this is related to the first issue.

Now I cannot use conda for anything, please advise and thank you!

1

10 Answers

I ran into the same problem and I couldn't find a solution, but I did find a workaround. If you create an env and activate that env and then do the install, it seems to work just fine. If you don't need a lot of libraries I would try that.

Commands are:

  1. Create env
conda create --name myenv
  1. Activate the env
conda activate myenv
7

I started running in to this problem when one package suggested following modifications before installation

conda config --set channel_priority true

so I just reverted it and voila error's gone

conda config --set channel_priority false
4

I solved a similar problem by doing the following:

conda update --all --yes
3

You may downgrade to an older version of conda 4.6.14 and then install your packages.

conda config --set allow_conda_downgrades true conda install conda=4.6.14
2

If your conda version is greater than or equal to 4.8, you may see that error. 

(base) [localhost ~]$ conda --version conda 4.8.2 (base) [localhost ~]$ conda install -c anaconda requests-kerberos Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.

Downgrade your conda if possible using the following commands

conda config --set allow_conda_downgrades true conda install conda=4.6.14

Then create your virtual environment:

conda create --name myenv_conda

Then activate your myenv_conda

conda activate myenv_conda

Now try to install packages using conda -c install anaconda 

eg: conda install -c conda requests-kerberos output: (myenv_conda) [localhost ~]$ conda install -c anaconda requests-kerberos Collecting package metadata: done Solving environment: done .... .... .... Preparing transaction: done Verifying transaction: done Executing transaction: done

helped me. Creating a new environment using the accepted answer didn't get my jupyter notebook to recognize the installed opencv. I could only import cv2 when I was in the environment on my terminal.

The fix was to use pip instead of conda, pip install opencv-python

1

I run into same problem while installing geopandas. The issue was gone after I upgraded to a newer version of Anaconda using:

conda update --prefix C:\apps\anaconda3 anaconda

Note: you'll have to modify the path C:\apps\anaconda3 pointing to your own installation directory.

Strangely, I did download Anaconda from the official homepage just a few hours ago and thought I had the newest version...

I had same problem but I solved because of SKİD.

After you create new env, You can run one of the codes in this link.

1

Create a new environment if your are not superuser, after that activate environment to install packages

1

Recommend to upgrade conda latest version.

conda install --quiet --yes conda=4.7.11 python -m pip install --upgrade pip==19.2.2
5