Cant render a video

[diegomarty]

I have finished making my video with removal and it cannot render, this is the error that appears

Error: Error while getting compositions: Tried to go to http://localhost:3001/index.html and verify that it is a 
Remotion project by checking if window.getStaticCompositions is defined.
However, the function was undefined, which indicates that this is not a valid Remotion project. Please check the 
URL you passed.
The page loaded contained the following markup:

Does this look like a foreign page? If so, try to stop this server.
    at innerSetPropsAndEnv (D:\Programator\Repositorios\video-remotion\node_modules\@remotion\renderer\dist\set-props-and-env.js:102:15)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async innerGetCompositions (D:\Programator\Repositorios\video-remotion\node_modules\@remotion\renderer\dist\get-compositions.js:27:5)

[JonnyBurger]

Hi @diegomarty, sorry for the long response time!

Like the error message says, something is blocking this port, what do you see when you are visiting http://localhost:3001?

[diegomarty]

Yes, that was the problem, I unlocked the port and it works now, thank you very much and sorry for the inconvenience,
Many thanks for your work!