Cannot open streamlit on browser via any links provided

Hi @Aiqi, running via colab is definitely the issue – for it to work properly, you need to make colab expose the app in a way that is accessible from a different machine (your computer). I would recommend looking around for other posts about colab, like this one How to Launch Streamlit App from Google Colab Notebook and here Free Streamlit Dev Environment through Colaboratory

I’m not sure how up-to-date any of those solutions are, but my guess is that the easiest way will be to install and use a tool like ngrok or localtunnel, so that you get a url that you can go to from anywhere to access the streamlit app running on colab.

Or, you can just install streamlit on your machine and do streamlit hello from there to help get started.