Conan: Failed to install connan 1.8.2 on ubuntu16.04

Created on 11 Oct 2018 · 12Comments · Source: conan-io/conan

I'm installing as

pip --no-cache-dir install conan conan_package_tools

As the time of installing, the latest version was 1.8.2. And,
the output logs:

Installing collected packages: PyJWT, colorama, patch, monotonic, fasteners, node-semver, distro, isort, wrapt, lazy-object-proxy, typed-ast, astroid, mccabe, pylint, deprecation, t
qdm, bottle, pluginbase, conan, idna, tabulate, conan-package-tools
  Running setup.py install for patch: started
    Running setup.py install for patch: finished with status 'done'
  Running setup.py install for wrapt: started
    Running setup.py install for wrapt: finished with status 'done'
  Found existing installation: tqdm 4.26.0
    Uninstalling tqdm-4.26.0:
      Successfully uninstalled tqdm-4.26.0
  Rolling back uninstall of tqdm
Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: '/usr/local/man/man1'

I switched the installing to version 1.7.4, and everything was good.

Source

figroc

Most helpful comment

This is affecting pretty much every project using Conan directly or indirectly, so this should probably getting a high priority. 🙈

Croydon on 12 Oct 2018

👍2

All 12 comments

Found a similar issue here https://github.com/tqdm/tqdm/issues/460

Maybe you dont have that man directory or the right user permissions

danimtb on 11 Oct 2018

I just run into this two days ago on macOS Travis CI. It worked before but stopped working suddenly, it could be related to the 1.8.0 release, but I haven't tested that yet.

I have workaround that by doing this:

sudo mkdir -p /usr/local/man;
sudo chown -R "${USER}:admin" /usr/local/man;

Would be still nice to know where this is coming from

Croydon on 11 Oct 2018

I think this is actually coming from the tqdm dependency that was introduced in 1.8.0

cc/ @jgsogo

danimtb on 11 Oct 2018

Actually I was building an image for C++ environment including conan tools. I really don't want to install _man_ 😕

In version 1.8.2, it is required tqdm==4.20.0 strictly. Why can't it be 4.26.0?

figroc on 12 Oct 2018

Hi @figroc,

Seems tqdm was downgraded due to an issue with python 2, you can see the conversation starting at this comment: https://github.com/conan-io/conan/pull/3545#issuecomment-421068377

We will try to get it fixed for next release. Keep us posted if you workaround this in the meantime. Thank!

danimtb on 12 Oct 2018

👍1

You can try to pip install in the user home directory by typping pip install --user conan conan_package_tools (or using a virtualenv). Let us know if the --user works for you.

About the tqdm update, I'm tracking the issue, I'll ping them and try to push it forward.

jgsogo on 12 Oct 2018

👍2

This is affecting pretty much every project using Conan directly or indirectly, so this should probably getting a high priority. 🙈

Croydon on 12 Oct 2018

👍2

Hi!

I don't think this can be tagged as a bug or even an issue, it has to do with system permissions and the way pip/python works. It's so common to come across a _permissions denied_ error when installing packages system-wide with pip and the solution is to use sudo, install it per-user (with --user) or use a virtualenv.

We'll open the revision required for tqdm as soon as we identify a range without known issues, but chances to find this _error_ again are 100% (@figroc would have been ok with his 4.26.0 version, but anyone without a tqdm installed could have got the error) . Right now there are several dependencies of Conan that requires elevated permissions to be installed system-wide, but usually, they are already installed so it doesn't complain.

We may change the docs and recommend installing Conan using the --user argument (although it would be even better to use a virtualenv). The --user is a long-standing discussion in the pip community and I hope it will be the default behavior anytime soon (more info: https://github.com/pypa/pip/issues/1668).

jgsogo on 14 Oct 2018