Hi @ptrblck!



 ptrblck:

I seem to run into the same error and I guess the download is failing somehow.


Just FYI:  I tried installing the nightly again (on 2/2/21).  It still fails, but with a
different kind of error, maybe about my python version:
(goofy) user@server:~$ conda install pytorch torchvision torchaudio cudatoolkit=11.0 -c pytorch-nightly
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.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: -
Found conflicts! Looking for incompatible packages.                             failed

UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

  - olefile -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.6,<3.7.0a0|>=3.7,<3.8.0a0']
  - torchvision -> python[version='>=3.9,<3.10.0a0']
  - typing_extensions -> python[version='>=3.9,<3.10.0a0']
  - wheel -> python[version='>=3.9,<3.10.0a0']

Your python: python=3.8

(I could post the entire list of conflicts, if that would be helpful.  But it’s long.)
Has the nightly now changed to requiring python 3.9?  The install instructions
on the main pytorch.org web page seem to imply that 3.9 is not yet required:
NOTE: Python 3.9 users will need to add '-c=conda-forge' for installation
conda install pytorch torchvision torchaudio cudatoolkit=11.0 -c pytorch-nightly

Again, this is not important to me – I’m just providing feedback.
Best.
K. Frank