App stuck loading after reboot — empty logs

Community Cloud
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1

My Community Cloud app has been stuck on the loading spinner this morning. Rebooting and opening a fresh browser tab haven’t resolved it.

Downloaded logs contain only the header, with no startup messages or errors. The app uses Python 3.12.

App: https://advertiser-intelligence-eqtdkyynzsdstjd6rytyt2.streamlit.app/

Could you help check why it isn’t starting?

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2

Hey there, thanks for sharing your question and all the details—welcome to the Streamlit community! :partying_face: When a Streamlit Community Cloud app is stuck on the loading spinner (“Your app is in the oven”) and logs are empty, it usually points to a deployment or platform issue, not a bug in your code. Common causes include: (1) resource limits, (2) dependency or Python version mismatches, or (3) a temporary backend problem. Since you’re using Python 3.12 (which is supported), and rebooting plus a fresh browser tab didn’t help, this is likely a platform or dependency issue.

Here’s what you can try next, based on official docs and recent forum threads:

  • Double-check your requirements.txt for typos, unnecessary packages (don’t include standard library modules), or incompatible versions.
  • Make sure all files your app needs are present in your repo and referenced with relative paths.
  • If you recently changed dependencies or Python version, try deleting and redeploying the app.
  • Sometimes, platform-side issues cause this symptom—monitor the Streamlit status page and check the deployment troubleshooting docs and resource limits guide.
  • If the problem persists, try a minimal app (just st.write("hello")) and minimal requirements.txt to isolate the issue.
    If you’re still stuck, please share your requirements.txt and a minimum reproducible example—community members love to help debug! Folks, feel free to jump in with your insights or similar experiences!

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