Not able to run gazebo

[Muhammad0312]

Hello,
I am using humble-gazebo image and wasn't able to run gazebo. I get the following error and could resolve it

ALSA lib confmisc.c:855:(parse_card) cannot find card '0' ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name ALSA lib conf.c:5178:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5701:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM default AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': No such file or directory
I am sorry if this is a stupid question to ask

[athackst]

Hmm... what platform are you running on?

[Muhammad0312]

I have Ubuntu 20.04 on an hp laptop.

[athackst]

I think it looks like an error related to a sound card - it's possible that something in gazebo is trying to access it? Can you share the command you're using to run it and which image you're trying to run?