Follow WEB PLAYBACK SDK Guide step by step, however issue appears

[timchen_an]

My Question or Issue

Please refer to 

https://developer.spotify.com/documentation/web-playback-sdk/guide/

I was able to see a spinning React logo at first, meaning React does work. But at the final "Running everything together" part, when I run npm run dev the "localhost refused to connect". Meanwhile my terminal was saying I compiled successfully as below.

"

Compiled successfully!

You can now view spotify-web-player in the browser.

Local: http://localhost:3000
On Your Network: http://172.22.255.116:3000

Note that the development build is not optimized.
To create a production build, use npm run build.

webpack compiled successfully

"

Could anyone shed some light on this issue? Or is there any possible errors in the Guide, since I found several typos in the code that causes the error? (ex told I should create a Webplayback.jsx, while the actual name in code is WebPlayback.jsx)

Very appreciate any help!

[Ximzend]

You can try to use another port number.

[timchen_an]

Hi Ximzend

Thanks for your kind advice. The issue persists even though I've tried almost other 10+ port numbers. =(