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Seasoned ⭐️
August 25, 2026
Question

streamlit app - error booting up - program terminated with exit(1)

  • August 25, 2026
  • 2 replies
  • 41 views

I’m trying to deploy a couple of Streamlit apps into Data Fusion.  I’m getting the error “Error during booting up: Program terminated with exit(1)” in the Data Fusion editor portal.

I’d swore one app was working yesterday and I was able to publish, but both apps are giving this error in the editor portal.  I can publish, but I get the same error in Flows when trying to run the custom app.
 

I’ve tried researching and it says to look at the logs, but I don’t see a way to view any log details.

Any thoughts on how to debug this?

 

2 replies

Lars Moastuen
Expert ⭐️⭐️⭐️⭐️
Expert ⭐️⭐️⭐️⭐️
August 26, 2026

Hi ​@dburley70. In order to help debug this, are you able to produce and share a HAR file? Please see 

Note that you can send the file directly to me at lars.moastuen@cognite.com .

Lars Moastuen (Software Engineer, Atlas AI)
dburley70Author
Seasoned ⭐️
August 26, 2026

Thx Lars for the reply.  I have generate the HAR file.  I’ll send it to your directly as I don’t see a way to attach it here.