Pytorch3d: conda PackageNotFoundError

[peterjohnsonhuang]

I followed the instructions in INSTALL.md to create a new anaconda env, and install the required packages by the instructions. However, when I use "conda install pytorch3d -c pytorch3d",
I got
PackageNotFoundError: Packages missing in current channels:

• pytorch3d -> pytorch 1.4
  here is my result by typing conda list:
  

[bottler]

The list looks healthy - you have all the dependencies right in that list. (I know you are using a 64bit python on Linux because of the ld package.) There isn't an obvious problem.

Can you try conda install -c pytorch3d pytorch3d --verbose or conda install -c pytorch3d pytorch3d --verbose --verbose? Thanks

[peterjohnsonhuang]

when I try conda install -c pytorch3d pytorch3d --verbose, this is what happened:

An unexpected error has occurred.
Please consider posting the following information to the
conda GitHub issue tracker at:

https://github.com/conda/conda/issues

Current conda install:

           platform : linux-64
      conda version : 4.3.27
   conda is private : False
  conda-env version : 4.3.27
conda-build version : 3.0.22
     python version : 3.6.2.final.0
   requests version : 2.18.4
   root environment : /home/pj/anaconda3  (writable)
default environment : /home/pj/anaconda3/envs/pytorch3d
   envs directories : /home/pj/anaconda3/envs
                      /home/pj/.conda/envs
      package cache : /home/pj/anaconda3/pkgs
                      /home/pj/.conda/pkgs
       channel URLs : https://conda.anaconda.org/pytorch3d/linux-64
                      https://conda.anaconda.org/pytorch3d/noarch
                      https://repo.continuum.io/pkgs/main/linux-64
                      https://repo.continuum.io/pkgs/main/noarch
                      https://repo.continuum.io/pkgs/free/linux-64
                      https://repo.continuum.io/pkgs/free/noarch
                      https://repo.continuum.io/pkgs/r/linux-64
                      https://repo.continuum.io/pkgs/r/noarch
                      https://repo.continuum.io/pkgs/pro/linux-64
                      https://repo.continuum.io/pkgs/pro/noarch
        config file : None
         netrc file : None
       offline mode : False
         user-agent : conda/4.3.27 requests/2.18.4 CPython/3.6.2 Linux/5.3.10-arch1-1 arch/ glibc/2.30    
            UID:GID : 1004:1004

$ /home/pj/anaconda3/envs/pytorch3d/bin/conda install -c pytorch3d pytorch3d --verbose

Traceback (most recent call last):
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/cli/install.py", line 261, in install
    channel_priority_map=_channel_priority_map, is_update=isupdate)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 489, in install_actions_list
    for specs_by_prefix in required_solves]
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 489, in <listcomp>
    for specs_by_prefix in required_solves]
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 634, in get_actions_for_dists
    pkgs = r.install(specs, installed, update_deps=update_deps)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/resolve.py", line 813, in install
    pkgs = self.solve(specs, returnall=returnall)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/resolve.py", line 853, in solve
    reduced_index = self.get_reduced_index(specs)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/resolve.py", line 374, in get_reduced_index
    specs, features = self.verify_specs(specs)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/resolve.py", line 300, in verify_specs
    raise ResolvePackageNotFound(bad_deps)
conda.exceptions.ResolvePackageNotFound: 
  - pytorch3d
  - pytorch 1.4

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/exceptions.py", line 640, in conda_exception_handler
    return_value = func(*args, **kwargs)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/cli/main.py", line 140, in _main
    exit_code = args.func(args, p)
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/cli/main_install.py", line 80, in execute
    install(args, parser, 'install')
  File "/home/pj/anaconda3/lib/python3.6/site-packages/conda/cli/install.py", line 275, in install
    raise PackageNotFoundError(pkg, channels_urls)
conda.exceptions.PackageNotFoundError: Packages missing in current channels:

  - pytorch3d -> pytorch 1.4

We have searched for the packages in the following channels:

  - https://conda.anaconda.org/pytorch3d/linux-64
  - https://conda.anaconda.org/pytorch3d/noarch
  - https://repo.continuum.io/pkgs/main/linux-64
  - https://repo.continuum.io/pkgs/main/noarch
  - https://repo.continuum.io/pkgs/free/linux-64
  - https://repo.continuum.io/pkgs/free/noarch
  - https://repo.continuum.io/pkgs/r/linux-64
  - https://repo.continuum.io/pkgs/r/noarch
  - https://repo.continuum.io/pkgs/pro/linux-64
  - https://repo.continuum.io/pkgs/pro/noarch

[bottler]

I can reproduce the error in continuumio/miniconda3:4.3.27p0 from the docker hub, which matches the version of conda you are using.

Specifically

sudo docker run --rm -i -t continuumio/miniconda3:4.3.27p0
conda create -n h python=3.6
source activate h
conda install -c pytorch pytorch=1.4 torchvision
conda install -c conda-forge -c fvcore fvcore
conda install -c pytorch3d pytorch3d

If I do the same thing in continuumio/miniconda3:4.4.1, which is the next newer version which has an image available, it works.
(There are cudatoolkit discrepancies but I think that's not the main issue.)
My guess is that our installation instructions don't work on conda versions as old as yours. My guess as to why is as follows. When we rely on pytorch we ask for pytorch=1.4, and we rely on the fuzzy matching by which version 1.4.0 satisfies the requirement for 1.4. This fuzziness was introduced in conda 4.4.

[peterjohnsonhuang]

Ok, thank you for the reply and contribution. I will try again with newer versions!