Hi Ilaya Basin,
This issue happens because the dist folder (where Mendix builds the client-side UI resources) is not generated when you Deploy for Eclipse.
So, Eclipse tries to load dist/index.js but the file doesn’t exist → 404 Not Found.
How to fix
Do one of the following:
Option 1 — Run once from Mendix Studio Pro
1. Open the project in Mendix Studio Pro
2. Click Run Locally
3. After successful run, the deployment/web/dist folder will be created
4. Now go back and run from Eclipse → Homepage will load fine ✔
Option 2 — Clean deployment folder
1. Close the app in Eclipse
2. Delete the folder:
<project>\deployment
3. Run again from Studio Pro to regenerate UI resources
4. Then run from Eclipse