fix State changed from starting to crashed Heroku, at=error code=H10 desc='App crashed'

Error R10 Boot timeout Web process failed to bind to $PORT within 60 seconds of launch

State changed from starting to crashed

at=error code=H10 desc="App crashed" method=GET path="/" host 84d60d01-1f
status=503 bytes= protocol=https

at=error code=H20 desc="App boot timeout" method=GET path="/" host==1d7221ice= status=503 bytes= protocol=https

Stopping all processes with SIGTERM

Process exited with status 143

at=error code=H20 desc="App boot timeout" method=GET path="/" host==10f072c8-c03a-4399-b330-dab88f3a9dc5 fwd="5.18.219.136" dyno= connect= service= status=503 bytes= protocol=https

[esraagamal]

same problem using python, how can i fix it

[goldfish]

I was loosing my mind, thank's ! it was so simple :)

[vladfarias]

My port wasn't hard coded like that...still it isn't working

[valdineidossantos]

Don't fix in python FastAPI project. I received same error.

[AnkitKumar-yibh]

I've seen more than a thousand different solution to this error code and none of them works for me. At this point I might just code everything from scratch again and see how it goes.

[MatheusSilva-ofmp]

I have the same error, but in a spring-boot project in java, do you know how to fix it?