An unexpected error has occurred

[Phuripan2406]

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 : osx-64
      conda version : 4.3.30
   conda is private : False
  conda-env version : 4.3.30
conda-build version : 3.0.27
     python version : 3.6.3.final.0
   requests version : 2.18.4
   root environment : /Users/bung/anaconda3  (writable)
default environment : /Users/bung/anaconda3/envs/env_salvus
   envs directories : /Users/bung/anaconda3/envs
                      /Users/bung/.conda/envs
      package cache : /Users/bung/anaconda3/pkgs
                      /Users/bung/.conda/pkgs
       channel URLs : https://conda.anaconda.org/conda-forge/osx-64
                      https://conda.anaconda.org/conda-forge/noarch
                      https://conda.anaconda.org/anaconda-fusion/osx-64
                      https://conda.anaconda.org/anaconda-fusion/noarch
                      https://repo.continuum.io/pkgs/main/osx-64
                      https://repo.continuum.io/pkgs/main/noarch
                      https://repo.continuum.io/pkgs/free/osx-64
                      https://repo.continuum.io/pkgs/free/noarch
                      https://repo.continuum.io/pkgs/r/osx-64
                      https://repo.continuum.io/pkgs/r/noarch
                      https://repo.continuum.io/pkgs/pro/osx-64
                      https://repo.continuum.io/pkgs/pro/noarch
        config file : /Users/bung/.condarc
         netrc file : None
       offline mode : False
         user-agent : conda/4.3.30 requests/2.18.4 CPython/3.6.3 Darwin/17.2.0 OSX/10.13.1    
            UID:GID : 501:20

$ /Users/bung/anaconda3/envs/env_salvus/bin/conda install pip h5netcdf pytest flake8 obspy pyyaml jsonschema pytest-mpl

Traceback (most recent call last):
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/exceptions.py", line 640, in conda_exception_handler
    return_value = func(*args, **kwargs)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/cli/main.py", line 140, in _main
    exit_code = args.func(args, p)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/cli/main_install.py", line 80, in execute
    install(args, parser, 'install')
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/cli/install.py", line 326, in install
    execute_actions(actions, index, verbose=not context.quiet)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 826, in execute_actions
    plan = plan_from_actions(actions, index)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 338, in plan_from_actions
    plan = inject_UNLINKLINKTRANSACTION(plan, index, prefix)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/plan.py", line 302, in inject_UNLINKLINKTRANSACTION
    pfe.prepare()
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 467, in prepare
    for dist in self.link_dists)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 467, in <genexpr>
    for dist in self.link_dists)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 403, in make_actions_for_dist
    key=lambda pce: pce and pce.is_fetched and pce.tarball_matches_md5_if(md5)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/_vendor/auxlib/collection.py", line 88, in first
    return next((apply(x) for x in seq if key(x)), default() if callable(default) else default)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/_vendor/auxlib/collection.py", line 88, in <genexpr>
    return next((apply(x) for x in seq if key(x)), default() if callable(default) else default)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 403, in <lambda>
    key=lambda pce: pce and pce.is_fetched and pce.tarball_matches_md5_if(md5)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 104, in tarball_matches_md5_if
    return not md5sum or self.md5sum == md5sum
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 112, in md5sum
    return self._calculate_md5sum() if self.is_fetched else None
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/_vendor/auxlib/decorators.py", line 137, in _wrapper
    result = method(self, *args, **kwargs)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/core/package_cache.py", line 120, in _calculate_md5sum
    return compute_md5sum(self.package_tarball_full_path)
  File "/Users/bung/anaconda3/lib/python3.6/site-packages/conda/gateways/disk/read.py", line 63, in compute_md5sum
    for chunk in iter(partial(fh.read, 8192), b''):
OSError: [Errno 5] Input/output error

[kalefranz]

Just an intermittent IO error I think.

[github-actions]

Hi there, thank you for your contribution to Conda!

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