E: Unable to locate package cmake

[snehankekre]

Hi @Pavan_sai_Sheshetti, welcome to the Streamlit community!!

I’m sorry to hear you had issues with dlib. I tried installing it via pip but couldn’t get it to work. However, it appears to work using conda. Here are the steps you need to follow to successfully deploy your app:

1. Delete your app from Streamlit Sharing

2. Delete your requirements.txt file

3. Create a packages.txt file to install the the apt-get dependencies for dlib. Your packages.txt should contain:

   build-essential
   libgtk-3-dev
   libboost-all-dev
   freeglut3-dev
   cmake
   libopenblas-dev
   

4. To install Python packages with conda, create an environment.yml file containing the following:

    channels:
        - conda-forge
    dependencies:
        - dlib
        - numpy
        - scipy
        - opencv
        - face_recognition
   

5. Deploy your app on Streamlit Sharing

Once you follow all the steps, your deployed app should look like this:

Feel free to copy the requirements.txt and environment.yml files from my fork of your repo. Let us know if this helps!

Happy Streamlit-ing!
Snehan