CODEWITHSUNDEEP
pythonlinuxyamlconda
Zhang Yongheng
Zhang Yongheng

Reputation: 125

PackagesNotFoundError: The following packages are not available from current channels (libgcc-ng and libstdcxx-ng)

I am trying to run the yml file but fail to solve the environment. The error is

ResolvePackageNotFound:

libgcc-ng
libstdcxx-ng

Then I tried conda installs

conda install -c anaconda libgcc-ng 
conda install -c conda-forge libstdcxx-ng

but the following error occurs:

PackagesNotFoundError: The following packages are not available from current channels:

libgcc-ng
libstdcxx-ng

Current channels:

  - https://conda.anaconda.org/conda-forge/osx-64
  - https://conda.anaconda.org/conda-forge/noarch
  - https://repo.anaconda.com/pkgs/main/osx-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/osx-64
  - https://repo.anaconda.com/pkgs/r/noarch

Edit: I tried (PackagesNotFoundError: The following packages are not available from current channels:)

conda config --append channels conda-forge

and then tried

conda install -c conda-forge <package>

as well as pip install. Still does not work as my goal is to download libgcc-ng and libstdcxx-ng packages

Upvotes: 3

Views: 9633

Answers (2)

merv
merv

Reputation: 76850

As @Simba correctly points out those packages are for linux-* platforms only. If your goal is simply to have a C/C++ compiler (not specifically GCC), consider instead using

conda install -c conda-forge compilers

This will install a platform-appropriate compiler on each platform, and populates the environment variables CC, CXX and GFORTRAN with paths to the respective compilers.

Upvotes: 3

Simba
Simba

Reputation: 27628

libgcc-ng, libstdcxx-ng do exist in conda-forge. But they're for Linux only, not for macOS, Windows.

These two packages include libraries for gcc. For macOS, install gcc with homebrew. They are contained by the gcc package already.

brew install gcc

Upvotes: 5

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