conda install fails due to hdf5 conflicts

Created by: NAThompson

Describe the bug

Just installed Anaconda for Python3.7 from here. Then I ran cd anaconda3; . bin/activate, and finally:

(base) ➜  anaconda3 conda install -c conda-forge adios2 
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.
This can take several minutes.  Press CTRL-C to abort.
failed                                                                                                                                       
                                                                                                                                             
UnsatisfiableError: The following specifications were found to be incompatible with each other:                                              



Package hdf5 conflicts for:
anaconda==2019.10 -> h5py==2.9.0=py36h7918eee_0 -> hdf5[version='>=1.10.4,<1.10.5.0a0']
adios2 -> hdf5[version='>=1.10.5,<1.10.6.0a0|>=1.8.13|>=1.8.13|>=1.8.13',build='nompi_*|mpi_openmpi_*|mpi_openmpi_*|mpi_mpich_*|mpi_mpich_*']
anaconda==2019.10 -> hdf5==1.10.4=hb1b8bf9_0
pytables -> hdf5[version='1.10.1|1.10.1.*|1.8.17|1.8.17.*|1.8.18|1.8.18.*|>=1.10.1,<1.10.2.0a0|>=1.10.2,<1.10.3.0a0|>=1.10.3,<1.10.4.0a0|>=1.10.4,<1.10.5.0a0|>=1.10.5,<1.10.6.0a0|>=1.8.18,<1.8.19.0a0|>=1.8.20,<1.9.0a0']
h5py -> hdf5[version='1.10.1|1.10.1.*|1.10.2.*|1.8.17.*|1.8.17|1.8.17.*|1.8.18|1.8.18.*|>=1.10.1,<1.10.2.0a0|>=1.10.2,<1.10.3.0a0|>=1.10.3,<1.10.4.0a0|>=1.10.4,<1.10.5.0a0|>=1.10.4,<1.10.5.0a0|>=1.10.4,<1.10.5.0a0|>=1.10.5,<1.10.6.0a0|>=1.10.5,<1.10.6.0a0|>=1.10.5,<1.10.6.0a0|>=1.8.18,<1.8.19.0a0|>=1.8.20,<1.9.0a0',build='mpi_openmpi_*|mpi_openmpi_*|mpi_mpich_*|mpi_mpich_*']
hdf5

To Reproduce

(base) ➜  anaconda3 python3  
Python 3.7.4 (default, Aug 13 2019, 20:35:49) 
[GCC 7.3.0] :: Anaconda, Inc. on linux

$ lsb_release -a
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic

I installed hdf5 from apt; for example:

$ h5ls --version
h5ls: Version 1.10.4