how install spotify?

[Pfiff]

Hello,

i want to install a spotify client.

Code:

pfiff@netrunner-pfiff:~$ echo deb http://repository.spotify.com stable non-free | sudo tee /etc/apt/sources.list.d/spotify.list
[sudo] Passwort für pfiff:
deb http://repository.spotify.com stable non-free
pfiff@netrunner-pfiff:~$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com BBEBDCB318AD50EC6865090613B00F1FD2C19886  
Executing: /tmp/apt-key-gpghome.1yS1xVZWKA/gpg.1.sh --recv-keys --keyserver keyserver.ubuntu.com BBEBDCB318AD50EC6865090613B00F1FD2C19886
key 13B00F1FD2C19886:
3 Beglaubigungen wegen fehlender Schlüssel nicht geprüft
gpg: Schlüssel 13B00F1FD2C19886: Öffentlicher Schlüssel "Spotify Public Repository Signing Key <operations@spotify.com>" importiert
gpg: Anzahl insgesamt bearbeiteter Schlüssel: 1
gpg:                              importiert: 1

but got this answer. How can I activate this repository despite the missing key? Or, how can i get the key?

Ciao!

Dieter

[leszek]

Looks to me like it imported the key just fine.
Is it spilling out any error message for that specific repository when running sudo apt update?

[Pfiff]

(22nd November 2017, 19:11)leszek Wrote: Looks to me like it imported the key just fine.
Is it spilling out any error message for that specific repository when running sudo apt update?

I'm not sitting at this specific pc to quote the messages correctly but there is a error message concerning this repositpory during sudo apt update. (Refusing the repository because of missing key ...) 

Ciao!

Dieter 

[leszek]

Would be nice to have the exact error message.

[Pfiff]

ok, here is exact error message ..

Code:

sudo apt update
OK:1 http://snapshot.debian.org/archive/debian/20170904 testing InRelease
OK:2 https://repo.skype.com/deb stable InRelease                                                                                            
Holen:4 http://repository.spotify.com stable InRelease [3.302 B]                                                                            
Fehl:4 http://repository.spotify.com stable InRelease                                                                
  Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar ist: NO_PUBKEY EFDC8610341D9410
OK:5 http://ds9-eu.s3-website.eu-central-1.amazonaws.com/dci/packages/netrunner netrunner-backports InRelease
OK:6 http://ds9-eu.s3-website.eu-central-1.amazonaws.com/dci/packages/netrunner netrunner-1710 InRelease
OK:3 https://cdn-aws.deb.debian.org/debian testing InRelease                      
Paketlisten werden gelesen... Fertig
W: GPG-Fehler: http://repository.spotify.com stable InRelease: Die folgenden Signaturen konnten nicht überprüft werden, weil ihr öffentlicher Schlüssel nicht verfügbar ist: NO_PUBKEY EFDC8610341D9410
E: The repository 'http://repository.spotify.com stable InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

what can i do now to fix this problem?

Ciao!

Dieter