Backend Pod fails to start due to Pydanic parsing error in >v1.1

[busbyjon]

Logs from Backend Pod

│ │ data = { │ │
│ │ │ 'database_url': 'sqlite:////data/langflow.db', │ │
│ │ │ 'backend_only': 'true', │ │
│ │ │ 'host': '0.0.0.0', │ │
│ │ │ 'port': 'tcp://172.20.212.70:8080' │ │
│ │ } │ │
│ │ self = Settings() │ │
│ ╰───────────────────────────────────────────────────────────╯ │
╰──────────────────────────────────────────────────────────────────────────────╯
ValidationError: 1 validation error for Settings
port
Input should be a valid integer, unable to parse string as an integer
[type=int_parsing, input_value='tcp://172.20.212.70:8080', input_type=str]
For further information visit https://errors.pydantic.dev/2.9/v/int_parsing

It appears Pydantic is failing to parse the "port" value, despite this being required to read the frontend service.

Reverting to v1.0.18 solved the issue, however this will need to fixed upstream.

[suminhong]

hi. I also had the same problem, and I solved it by adding an environment variable as shown below.

langflow:
  backend:
    env:
      - name: LANGFLOW_PORT
        value: "7860"

[dkpvw]

@suminhong where did you make this change? Kindly guide me