error when conda update anaconda

[hydroclaus]

Hello,
I tried to update anaconda, when the error below occurred and I was asked to submit the issue here. I'd appreciate any pointers for resolving this issue.

Thanks.

conda update anaconda
Fetching package metadata: ......
Solving package specifications: .....................................................................................................................An unexpected error has occurred, please consider sending the
following traceback to the conda GitHub issue tracker at:

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

Include the output of the command 'conda info' in your report.

Traceback (most recent call last):
File "/Users/carlos/anaconda/bin/conda", line 5, in
sys.exit(main())
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/cli/main.py", line 195, in main
args_func(args, p)
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/cli/main.py", line 202, in args_func
args.func(args, p)
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/cli/main_update.py", line 48, in execute
install.install(args, parser, 'update')
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/cli/install.py", line 333, in install
update_deps=args.update_deps)
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/plan.py", line 411, in install_actions
update_deps=update_deps):
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 1057, in solve
installed, minimal_hint=minimal_hint, update_deps=update_deps)
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 819, in solve2
clauses = set(self.gen_clauses(v, dists, specs, features))
File "/Users/carlos/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 624, in gen_clauses
assert len(clause) > 1, '%s %r' % (fn1, ms)
AssertionError: beautifulsoup4-4.4.1-py27_0.tar.bz2 MatchSpec(u'html5lib')
u-198-c178: carlos$conda info
Current conda install:

         platform : osx-64
    conda version : 3.18.3

conda-build version : 1.14.1
python version : 2.7.10.final.0
requests version : 2.8.1
root environment : /Users/carlos/anaconda (writable)
default environment : /Users/carlos/anaconda
envs directories : /Users/carlos/anaconda/envs
package cache : /Users/carlos/anaconda/pkgs
channel URLs : https://conda.anaconda.org/ioos/osx-64/
https://conda.anaconda.org/ioos/noarch/
https://repo.continuum.io/pkgs/free/osx-64/
https://repo.continuum.io/pkgs/free/noarch/
https://repo.continuum.io/pkgs/pro/osx-64/
https://repo.continuum.io/pkgs/pro/noarch/
config file : /Users/carlos/.condarc
is foreign system : False

u-198-c178: carlos$

[BjornFJohansson]

Hi, same here:

Traceback (most recent call last):
  File "/home/bjorn/anaconda/envs/bjorn/bin/conda", line 5, in <module>
    sys.exit(main())
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/cli/main.py", line 195, in main
    args_func(args, p)
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/cli/main.py", line 202, in args_func
    args.func(args, p)
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/cli/main_update.py", line 48, in execute
    install.install(args, parser, 'update')
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/cli/install.py", line 333, in install
    update_deps=args.update_deps)
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/plan.py", line 411, in install_actions
    update_deps=update_deps):
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 1057, in solve
    installed, minimal_hint=minimal_hint, update_deps=update_deps)
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 819, in solve2
    clauses = set(self.gen_clauses(v, dists, specs, features))
  File "/home/bjorn/anaconda/lib/python2.7/site-packages/conda/resolve.py", line 624, in gen_clauses
    assert len(clause) > 1, '%s %r' % (fn1, ms)
AssertionError: tornado-4.2-py27_0.tar.bz2 MatchSpec(u'backports.ssl_match_hostname')
(bjorn)bjorn@bjorn-ThinkPad-T450s:~$ 

my system:

(bjorn)bjorn@bjorn-ThinkPad-T450s:~$ conda info --json
{
  "channels": [
    "https://conda.anaconda.org/t/<TOKEN>/BjornFJohansson/linux-64/", 
    "https://conda.anaconda.org/t/<TOKEN>/BjornFJohansson/noarch/", 
    "https://repo.continuum.io/pkgs/free/linux-64/", 
    "https://repo.continuum.io/pkgs/free/noarch/", 
    "https://repo.continuum.io/pkgs/pro/linux-64/", 
    "https://repo.continuum.io/pkgs/pro/noarch/"
  ], 
  "conda_build_version": "1.18.0", 
  "conda_version": "3.18.3", 
  "default_prefix": "/home/bjorn/anaconda/envs/bjorn", 
  "envs": [
    "/home/bjorn/anaconda/envs/_app_own_environment_ypkpathway", 
    "/home/bjorn/anaconda/envs/_test", 
    "/home/bjorn/anaconda/envs/bjorn", 
    "/home/bjorn/anaconda/envs/jup", 
    "/home/bjorn/anaconda/envs/seguid", 
    "/home/bjorn/anaconda/envs/wp", 
    "/home/bjorn/anaconda/envs/wp2"
  ], 
  "envs_dirs": [
    "/home/bjorn/anaconda/envs"
  ], 
  "is_foreign": false, 
  "pkgs_dirs": [
    "/home/bjorn/anaconda/pkgs"
  ], 
  "platform": "linux-64", 
  "python_version": "2.7.10.final.0", 
  "rc_path": "/home/bjorn/.condarc", 
  "requests_version": "2.8.1", 
  "root_prefix": "/home/bjorn/anaconda", 
  "root_writable": true, 
  "sys_rc_path": "/home/bjorn/anaconda/.condarc", 
  "user_rc_path": "/home/bjorn/.condarc"
}
(bjorn)bjorn@bjorn-ThinkPad-T450s:~$ 

[marscher]

This seems to be a really serious bug! Same here.

[ijstokes]

We're working on an update to conda to resolve this issue (in fact, I think the fix has been completed and we're just waiting for conda 3.18.4 package to be released). In the mean time you may be able to fix things by reverting to an earlier version of conda, e.g. by doing:

conda install conda=3.17

I just had a similar problem that I got around by reverting to an earlier conda version.

[mcg1969]

This is a frustrating issue indeed, not just because of the trouble it's causing y'all, but because we're having a dickens of a time reproducing it. If anyone can come up with a conda install string that consistently reproduces this particular issue, it would be greatly appreciated.

[mcg1969]

OK, I am now reasonably certain that the issue is due to conflicts between the multiple repos.

@clausTue, beautifulsoup4-4.4.1-py27_0.tar.bz2 exists both in the ioos repo and in the master repo. The problem is that the ioos version has different dependencies. I don't fully understand how that causes conda to fail, but I suspect that if you dropped that channel, or at least removed any duplicate packages from that channel, you'd be fine.

@BjornFJohansson, do you have a tornado package in your personal repos?

[mcg1969]

Here's a single-line conda command to exercise the error: conda create -n test1 -c ioos anaconda

[mcg1969]

I just discovered that if I apply #1766 the problem goes away. This PR has already been merged into master, but hasn't been pushed out in an official release yet. It's coming, but I do not know when.

[BjornFJohansson]

@mcg1969 I do have tornado 4.2

https://anaconda.org/bjornfjohansson/tornado

[mcg1969]

conda 3.18.4 has been released, which includes the required fixes.

[github-actions]

Hi there, thank you for your contribution to Conda!

This issue has been automatically locked since it has not had recent activity after it was closed.

Please open a new issue if needed.