conda 4.3.6 broken - Uncaught backoff with errno EEXIST 17

[dhirschfeld]

Trying to update all broke with a file already exists error when trying to install the packages:

C:\dev\code\sandbox> conda update --all
Fetching package metadata .................
Solving package specifications: .

Package plan for installation in environment C:\bin\Anaconda:

The following packages will be UPDATED:
<SNIP>
ipywidgets-5.2 100% |###############################| Time: 0:00:00   8.57 MB/s
pymc3-3.0-py35 100% |###############################| Time: 0:00:01 152.30 kB/s
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
ERROR conda.core.link:_execute_actions(318): An error occurred while uninstalling package 'conda-forge::jupyterlab-0.12.
1-py35_0'.
FileExistsError(17, 'Cannot create a file when that file already exists')
Attempting to roll back.

WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17


FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')

Trying again results in the same error (with a different package this time) leaving me unable to update my environment

C:\dev\code\sandbox> conda update --all
Fetching package metadata .................
Solving package specifications: .

Package plan for installation in environment C:\bin\Anaconda:

The following packages will be UPDATED:
<SNIP>
Proceed ([y]/n)? y

icu-58.1-vc14_ 100% |###############################| Time: 0:00:15 782.64 kB/s
libxml2-2.9.3- 100% |###############################| Time: 0:00:04 754.62 kB/s
qt-4.8.7-vc14_ 100% |###############################| Time: 0:00:34   1.51 MB/s
pyqt-4.11.4-py 100% |###############################| Time: 0:00:00   9.97 MB/s
matplotlib-2.0 100% |###############################| Time: 0:00:06   1.06 MB/s
anaconda-navig 100% |###############################| Time: 0:00:02   1.51 MB/s
qtconsole-4.2. 100% |###############################| Time: 0:00:00  14.07 MB/s
WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17
ERROR conda.core.link:_execute_actions(318): An error occurred while uninstalling package 'conda-forge::flask-cors-3.0.2-py35_0'.
FileExistsError(17, 'Cannot create a file when that file already exists')
Attempting to roll back.

WARNING conda.gateways.disk:exp_backoff_fn(47): Uncaught backoff with errno EEXIST 17


FileExistsError(17, 'Cannot create a file when that file already exists')
FileExistsError(17, 'Cannot create a file when that file already exists')

[dhirschfeld]

Using conda 4.3.6 on py35 / win64.

Downgrading to conda 4.2.15 allowed me to complete the update.

[kalefranz]

I'd love to know where this error came from and fix it, but I need more information. Can you still reproduce it? If so, can you give me the output with the addition of -v -v -v?

[dhirschfeld]

@kalefranz - I reverted to the previous revision, reinstalled 4.3.6 and re-ran conda update with -v -v -v which appeared to fail with the same error.

Log available at - https://gist.github.com/dhirschfeld/2fa4c615e09c33d03f86f9d95deefcbf

[dhirschfeld]

NB: 4.3.7 also has the same problem for me

[kalefranz]

Thanks for that debug output. Just want I needed. PR here that'll be included in 4.3.8.

[dhirschfeld]

Thanks for the fix - will look forward to 4.3.8!

Happy to try it out if there's a conda installable beta version.

[kalefranz]

Oh, 4.3.8 is posted to the canary channel.

conda config --add channels conda-canary
conda update conda

[wangty225]

My guess is that you did not run this command with administrator privileges！

[github-actions]

Hi there, thank you for your contribution!

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Please open a new issue if needed.

Thanks!