Unofficially streamlit was supporting conda dependencies via the conda.txt file and custom conda channels via the conda_channles.txt file. If you were using this feature you should migrate to the new supported environment.yml configuration file.
Example of migrating from conda.txt and conda_channles.txt to environment.yml:
conda.txt
numpy==1.18.1
scikit-learn==0.22.2.post1
conda_channles.txt
conda-forge
The two above files should be converted to one environment.yml file:
environment.yml
channles:
- conda-forge
dependencies:
- numpy==1.18.1
- scikit-learn==0.22.2.post1
For more information about the environment.yml please consult the conda documentation.