Totally newbie, need help with the initial setup

[msdobrescu]

Hi, using a Gentoo derivative, MocaccinoOS, I've built and installed the base app.
My system uses Pipewire.
I have tried to start the app, but always got this message:

"Default IO did not initialize.
Defaulting to NULL backend."

What is the problem, how could I diagnose this and fix it?

Thank you.

[pljones]

First, you need to learn that no one else on the internet can see your computer.

You need to tell everyone exactly what you have done, step by step - from turning the machine on, if needs be - to seeing the error, in great detail.

Otherwise, people cannot start to help you.

[BertKoor]

Known context (after some googling)

MocaccinoOS is a minimal Linux meta-distribution for the 21st century! Beyond Gentoo.

PipeWire is a new low-level multimedia framework. It aims to offer capture and playback for both audio and video with minimal latency and support for PulseAudio, JACK, ALSA and GStreamer-based applications.

Unknown context:

I've built and installed the base app. [...] I have tried to start the app.

You need to tell us at least what the name of "the" app is, how you built it and configured it.

[msdobrescu]

Sorry, thought this is zynaddsubfx support forum (and related).
This is what I refer by "base app".
I've simply emerged zynaddsubfx and installed it. Nothing more yet.

[D.H. Miltz]

Sorry, thought this is zynaddsubfx support forum (and related).

Moved the thread to that subforum.

[msdobrescu]

Thanks and apologies for all the mess!

[fundamental]

In theory for pipewire either the alsa or jack audio backend should work. In practice I don't know what issues you may encounter. (-O alsa or -O jack should select those backends if you compiled support for either)