If you are installing package with conda and you are encountering an issue.

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

- c-compiler
- fortran-compiler
- cxx-compiler

There is a workaround below. IThis is important as it tells conda to also look on the conda-forge channel when you search for packages.

conda config --append channels conda-forge
## Package Plan ##

  environment location: /usr/local/anaconda3-2022/envs/sagemath_env

  added / updated specs:
    - c-compiler
    - cxx-compiler
    - fortran-compiler
    - pkg-config


The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    _libgcc_mutex-0.1          |             main           3 KB
    _openmp_mutex-5.1          |            1_gnu          21 KB
    binutils-2.36.1            |       hdd6e379_2          27 KB  conda-forge
    binutils_impl_linux-64-2.36.1|       h193b22a_2        10.4 MB  conda-forge
    binutils_linux-64-2.36     |      hf3e587d_10          24 KB  conda-forge
    c-compiler-1.5.0           |       h166bdaf_0           5 KB  conda-forge
    cxx-compiler-1.5.0         |       h924138e_0           5 KB  conda-forge
    fortran-compiler-1.5.0     |       h2a4ca65_0           5 KB  conda-forge
    gcc-10.4.0                 |      hb92f740_10          24 KB  conda-forge
    gcc_impl_linux-64-10.4.0   |      h7ee1905_16        46.7 MB  conda-forge
    gcc_linux-64-10.4.0        |      h9215b83_10          25 KB  conda-forge
    gfortran-10.4.0            |      h0c96582_10          24 KB  conda-forge
.....
.....