[Python] Miniconda and environment creation error: Solving environment: failed

I have downloaded the latest version for Linux of Miniconda, by following the instructions on the website https://docs.anaconda.com/miniconda/install/. I cloned the repository https://gitlab.com/veropalumbo.alfonso/meascorr and tried to create the environment mc-env with:

conda env create -f environment.yml


However, I get the following message:

Channels:
- conda-forge
- defaults
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: failed

LibMambaUnsatisfiableError: Encountered problems while solving:
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- unsupported request
- nothing provides libgcc-ng >=7.3.0 needed by numpy-1.17.0-py36h7e9f1db_0
- nothing provides python >=3.5 needed by jupyterlab-1.1.3-pyhf63ae98_0

Could not solve for environment specs
The following packages are incompatible
├─ boost-cpp =* * does not exist (perhaps a typo or a missing channel);
├─ c-compiler =* * does not exist (perhaps a typo or a missing channel);
├─ ccfits =* * does not exist (perhaps a typo or a missing channel);
├─ cfitsio =* * does not exist (perhaps a typo or a missing channel);
├─ cxx-compiler =* * does not exist (perhaps a typo or a missing channel);
├─ eigen =* * does not exist (perhaps a typo or a missing channel);
├─ fftw =* * does not exist (perhaps a typo or a missing channel);
├─ fortran-compiler =* * does not exist (perhaps a typo or a missing channel);
├─ gsl =* * does not exist (perhaps a typo or a missing channel);
├─ jupyterlab =* * is not installable because there are no viable options
│ ├─ jupyterlab [1.1.3|1.1.4|...|2.3.1] would require
│ │ └─ python >=3.5 *, which does not exist (perhaps a missing channel);
│ └─ jupyterlab [3.0.11|3.0.14|...|3.3.2] would require
│ └─ ipython =* *, which does not exist (perhaps a missing channel);
├─ matplotlib =* * does not exist (perhaps a typo or a missing channel);
├─ numpy =* * is not installable because it requires
│ └─ libgcc-ng >=7.3.0 *, which does not exist (perhaps a missing channel);
├─ python =3.9 * does not exist (perhaps a typo or a missing channel);
├─ scipy =* * does not exist (perhaps a typo or a missing channel);
├─ swig =* * does not exist (perhaps a typo or a missing channel);
└─ sympy =* * does not exist (perhaps a typo or a missing channel).


I tried to reinstall Miniconda but it doesn't work. I would appreciate it if you could give me any suggestions.

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