Conda install fails

[tombackstrom]

Hey,

Had to reinstall my anaconda on Ubuntu today, but it refuses to install jupyter-book. That is, on a fresh install of anaconda, I did a "conda update -all" and then "conda install -c conda-forge jupyter-book". It reports that it found a conflict and goes into a forever-loop (more than 4 hours) trying to fix it.
Any ideas on how to resolve the issue? I'm the maintainer of a large jupyter-book project and am currently unable to compile it, so this is important. As a workaround, I could install it with pip, but mixing installation channels is usually a bad idea.

thanks,

Tom

[NickleDave]

what version of conda?

Just to rule this out:

• are you installing into (base) or are you using an isolated environment?
• have you tried putting a lower bound on jupyter-book or pinning the version?

https://www.anaconda.com/blog/understanding-and-improving-condas-performance

Installing a specific version into an isolated environment will probably be many times faster than asking the dependency resolver to consider whether every possible verson of jupyter-book can be installed with every other package in the base environment. If you're already doing that, then there's some other issue but more info would be needed.

[chrisjsewell]

If you are not using mamba, I would strongly advise it

[chrisjsewell]

(https://github.com/mamba-org/mamba)

[tombackstrom]

Retried a few hours later and it worked. Weird. Thanks for the suggestions tho!

[NickleDave]

Also that 🙂 and of course you can now use their solver in conda https://www.anaconda.com/blog/a-faster-conda-for-a-growing-community