Error: Error installing package(s)

[MislavSag]

I was following steps for installation but got error:

> keras::install_keras("conda", tensorflow="2.3.1", envname="mlr3keras")
Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

## Package Plan ##

  environment location: C:\Users\Mislav\AppData\Local\R-MINI~1\envs\mlr3keras

  added / updated specs:
    - python=3.7


The following packages will be downloaded:

    package                    |            build
    ---------------------------|-----------------
    numpy-1.21.2               |   py37h940b05c_0         5.6 MB  conda-forge
    pandas-1.3.2               |   py37h9386db6_0        10.8 MB  conda-forge
    python-3.7.10              |h7840368_100_cpython        17.9 MB  conda-forge
    python_abi-3.7             |          2_cp37m           4 KB  conda-forge
    setuptools-58.0.4          |   py37h03978a9_0         927 KB  conda-forge
    ------------------------------------------------------------
                                           Total:        35.2 MB

The following packages will be DOWNGRADED:

  numpy                               1.21.2-py38h089cfbf_0 --> 1.21.2-py37h940b05c_0
  pandas                               1.3.2-py38h5d928e2_0 --> 1.3.2-py37h9386db6_0
  python                          3.8.10-h7840368_1_cpython --> 3.7.10-h7840368_100_cpython
  python_abi                                     3.8-2_cp38 --> 3.7-2_cp37m
  setuptools                          58.0.4-py38haa244fe_0 --> 58.0.4-py37h03978a9_0



Downloading and Extracting Packages
numpy-1.21.2         | 5.6 MB    | ########## | 100% 
python_abi-3.7       | 4 KB      | ########## | 100% 
setuptools-58.0.4    | 927 KB    | ########## | 100% 
pandas-1.3.2         | 10.8 MB   | ########## | 100% 
python-3.7.10        | 17.9 MB   | ########## | 100% 
Preparing transaction: ...working... done
Verifying transaction: ...working... done
Executing transaction: ...working... done
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/tensorflow/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/tensorflow/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/tensorflow/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/tensorflow/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/tensorflow/
Could not fetch URL https://pypi.org/simple/tensorflow/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/tensorflow/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement tensorflow==2.3.1.* (from versions: none)
ERROR: No matching distribution found for tensorflow==2.3.1.*
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
Error: Error installing package(s): "\"tensorflow==2.3.1.*\"", "\"tensorflow-hub\"", "\"scipy\"", "\"requests\"", "\"pyyaml==3.12\"", "\"Pillow\"", "\"h5py==2.10.0\"", "\"pandas\"