WARNING: erroneous pipeline: no element "pulsesrc"

[hyperJJmaster]

In Terminal:
Looks like it was already dead...? Deleted pidfile.
Unloaded Viper sink.
Setting original sink to full volume...
Changing primary sink to Viper...
Invalid volume specification
Moving existing audio streams to Viper...
WARNING: erroneous pipeline: no element "pulsesrc"

[hyperJJmaster]

every time i try to start the viper the sound stops working i tried to configure it with the official gui and it just says "Unable to connect DBus Interface" and it doesn't work.

[noahbliss]

This often happens due to missing GStreamer dependencies. Which distribution are you on?

[putraadr]

I get this problem too, I'm using a freshly installed Debian Bullseye amd64.