Developer warning for package "com.spotify.music" Failed to post notification on channel "null"

[chungjun]

Plan

Premium

Country

Singapore 

Device

iBasso DX200 (Android based portable music player)

Operating System

Android 8.1.0 (Oreo)

Spotify Version 8.4.82.664

My Question or Issue

When downloading songs for "Offline" use, repeated error message displayed on the bottom of the device screen - "Developer warning for package "com.spotify.music" Failed to post notification on channel "null" See log for more details"

[Lex25]

Same error on my Samsung Note 9 512gb

[YungScar]

Phone Specs:

Samsung Galaxy A5 17 (custom)

Android 8.1.0

it seems like this only appears on Android 8+ 

try to clear cache and data if this isnt helping Re-Install Spotify

[YungScar]

For a Quick but not really helping fix for the Samsung Users with Android 7+ and up

Go to Settings / Advanced Features / Games.

Check both Options

Game Launcher

Game Tools

Now start Game Launcher and add Spotify.

Open Spotify and press the little red dot

Now Check "No Alerts during Game" 

(Its just a little fix to remove the anoying Toast message when you're Downloading a song)

[chungjun]

Update:

Have initiated a chat the other day with Spotify support.

Didn't quite resolve the issue with a few troubleshootings (including clean install).

Spotify support officer indicated that s/he will raise to the "right folks". It would appear issue is with Android 8.1 (Oreo). Possibly notification coding.

Hope this gets resolved in the next update.