I was able to resolve it. Kudos to Abdul Gafar Manuel Meque from MS tech support.
Details:
Symptom: While trying to create conda environment with “conda env create ...”, the following error is thrown: “PackagesNotFoundError: The following packages are not available from current channels: - recordclass=0.15.1*”
Troubleshooting Summary Re-run the conda environment creation command and analyze the entire output.
Cause: pip was trying to install some packages from source, which requires gcc to be installed.
Resolution: 1. Removed recordclass from list of packages in conda.yml. 2. refresh local package index with apt update 3. installed gcc 4. re-run the conda environment creation. (since recordclass is automatically install)