Spotify iOS SDK authentication returns 'unknown_error'

[sebasec]

Plan

Premium

Country

Argentina

Device

iPhone 15 Pro

Operating System

iOS 18.4

Spotify Version

9.0.32.638

Spotify iOS SDK Version

3.0.0

Xcode Version

16.3

I'm encountering persistent "unknown_error" responses when attempting to authenticate using the Spotify iOS SDK. This happens regardless of the authentication method used (both SessionManager and AppRemote approaches).

I have correctly set the ClientID and the Bundle ID on my app and the Spotify dashboard settings.

When I try to authenticate, I get redirected to the Spotify App, where an X shows and takes me back to my app. I logged the callback URL, and it looks like this:

motoscreen://callback?error=unknown_error&error_description=An%20unknown%20error%20has%20occured&spotify_version=9.0.32.638

Am I missing something? Do you know if this SDK is still functional? 

Thanks

[sebasec]

One thing I forgot to say is that I'm using React Native. After a lot of tries I ended trying one of the demo projects provided by the SDK and it also does not work

[jmandawg]

I'm also having the same issue.

_url NSURL "mymusicplayer://callback?error=unknown_error&error_description=An%20unknown%20error%20has%20occured&spotify_version=9.0.32.638" 0x0000000106324280

[shadowsandtalltrees]

same problem

[BojackH]

Same problem here. It was working before, but now it's not working for a new app.

[BojackH]

I think this is due to this : https://developer.spotify.com/blog/2025-02-12-increasing-the-security-requirements-for-integrating-w.... sebasec I guess you are using react-native-spotify-remote?

[sebasec]

That library is no longer maintained, so I decided to use React Native without Expo and integrate the Spotify SDK directly but I got stuck with this issue

[BojackH]

There are a lot of problem with the SDK since April 9. There are a lot of post on the forum mentioning errors with the SDK for iOS and Android. Even the Demo apps from the iOS SDK is not working right now! If you have created your app on the developer dashboard before April 9 it should works. If you have create it after April 9, you can't do much for now. There is an issue open o  the GitHub repository of the iOS SDK mentioning that the Demo apps is not working with an app created after April 9, but that it is working for app created before April 9. By App I mean Spotify App created on the Developer Dashboard. Even Spotify's own Demos are not working right now. They need to fix this!

[jmandawg]

Looks like it is fixed now.  They did something on the backend and fixed it without letting anyone know.  It's working now.