Conda Package Metadata Collection Error: 404 Not Found and Version Spec Warning

The error message indicates an issue with collecting package metadata. It seems there are multiple attempts to establish a connection with different servers, including 'conda.anaconda.org' and 'mirrors.tuna.tsinghua.edu.cn'.

The debug logs show some requests to these servers return a 404 status code, indicating the requested resource was not found. However, other requests return a 200 status code, indicating a successful response.

Additionally, there's a warning message related to the version specification. It suggests using the '.' wildcard with a relational operator is unnecessary and deprecated. The warning implies the spec '1.7.1.' is being treated as '1.7.1'.

To resolve this issue, try the following steps:

1. Check your internet connection and ensure you can access the required servers.
2. Verify the specified package metadata URLs are correct and accessible.
3. Update the version specification to remove the unnecessary wildcard, if applicable.
4. Retry the operation and see if the issue persists.

If the problem continues, you may need to seek further assistance or consult the documentation for the specific package manager or software you are using.