This page details some common issues and their respective workarounds. For Anaconda installation or technical support options, visit our support offerings page.

Conda: Channel is unavailable/missing or package itself is missing


After you have configured your .condarc for either Team Edition or Commercial Edition, in some cases you may be unable to install packages. You may receive an error message that the channel or package is unavailable or missing.


One potential fix for all of these is to run the following command:

conda clean -i

This will clear the “index cache” and force conda to sync metadata from the repo server.

403 error


A 403 errors is a generic Forbidden error issued by a web server in the event the client is forbidden from accessing a resource.

The 403 error you are receiving may look like the following:

Collecting package metadata (current_repodata.json): failed

UnavailableInvalidChannel: The channel is not accessible or is invalid.
  channel name: pkgs/main
  channel url:
  error code: 403

You will need to adjust your conda configuration to proceed.
Use `conda config --show channels` to view your configuration's current state,
and use `conda config --show-sources` to view config file locations.
There are several reasons a 403 error could be received:
  • The user has misconfigured their channels in their configuration (most common)
  • A firewall or other security device or system is preventing user access (second most common)
  • We are blocking their access because of a potential terms of service violation (third most common)


If you have ruled out the first two reasons to your 403 error, then we recommend consulting our Terms of Service error page to resolve the matter.