[Bug]: Development guide instructions not working

[bhackett1024]

Is there an existing issue for the same bug?

• [X] I have checked the existing issues.

Describe the bug and reproduction steps

I tried following the development guide in https://github.com/All-Hands-AI/OpenHands/blob/main/Development.md but after the make run step and visiting http://localhost:3001 the app was unable to select a model or start tasks using the agent.

I tracked down the problem to the frontend making OpenHands server requests (e.g. /ws, /api/options/models) to localhost:3001 instead of localhost:3000.

The code for getting the OpenHands server (getValidFallbackHost) changed recently in https://github.com/All-Hands-AI/OpenHands/pull/4413/files, which also set up a proxy to forward these requests from localhost:3000 to localhost:3001. That forwarding doesn't seem to be working for me, though I don't know why (I'm not familiar with Vite configuration).

OpenHands Installation

Development workflow

OpenHands Version

No response

Operating System

MacOS

Logs, Errors, Screenshots, and Additional Context

No response

[mamoodi]

Hmm I can't reproduce this issue. Couple of things:

• Delete all your openhands docker images
• Run make build and make run again
• When you go to localhost:3001, clean your cache with CMD + Shift + R