No valid sound driver

Ok
I solved it by installing version 2.5.2.

so something is wrong with version 2.6

with version 2.5.2 i have a problem that it does not compile with ffmpeg

##################################
ffmpeg.c: In function ‘find_first_audio’:
ffmpeg.c:315:3: warning: ‘codec’ is deprecated [-Wdeprecated-declarations]
315 | if (ic->streams[result]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
| ^~
In file included from ffmpeg.c:67:
/usr/include/libavformat/avformat.h:880:21: note: declared here
880 | AVCodecContext *codec;
| ^~~~~
ffmpeg.c: In function ‘ffmpeg_init’:
ffmpeg.c:513:2: warning: ‘avcodec_register_all’ is deprecated [-Wdeprecated-declarations]
513 | avcodec_register_all ();
| ^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/libavformat/avformat.h:312,
from ffmpeg.c:67:
/usr/include/libavcodec/avcodec.h:2751:6: note: declared here
2751 | void avcodec_register_all(void);
| ^~~~~~~~~~~~~~~~~~~~
ffmpeg.c:514:2: warning: ‘av_register_all’ is deprecated [-Wdeprecated-declarations]
514 | av_register_all ();
| ^~~~~~~~~~~~~~~
In file included from ffmpeg.c:67:
/usr/include/libavformat/avformat.h:2050:6: note: declared here
2050 | void av_register_all(void);
| ^~~~~~~~~~~~~~~
ffmpeg.c:521:2: warning: ‘av_lockmgr_register’ is deprecated [-Wdeprecated-declarations]
521 | rc = av_lockmgr_register (locking_cb);
| ^~
In file included from /usr/include/libavformat/avformat.h:312,
from ffmpeg.c:67:
/usr/include/libavcodec/avcodec.h:4118:5: note: declared here
4118 | int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
| ^~~~~~~~~~~~~~~~~~~
ffmpeg.c: In function ‘ffmpeg_destroy’:
ffmpeg.c:530:2: warning: ‘av_lockmgr_register’ is deprecated [-Wdeprecated-declarations]
530 | av_lockmgr_register (NULL);
| ^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/libavformat/avformat.h:312,
from ffmpeg.c:67:
/usr/include/libavcodec/avcodec.h:4118:5: note: declared here
4118 | int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
| ^~~~~~~~~~~~~~~~~~~
ffmpeg.c: In function ‘ffmpeg_open’:
ffmpeg.c:968:2: warning: ‘codec’ is deprecated [-Wdeprecated-declarations]
968 | data->enc = data->stream->codec;
| ^~~~
In file included from ffmpeg.c:67:
/usr/include/libavformat/avformat.h:880:21: note: declared here
880 | AVCodecContext *codec;
| ^~~~~
ffmpeg.c:996:34: error: ‘CODEC_CAP_TRUNCATED’ undeclared (first use in this function); did you mean ‘AV_CODEC_CAP_TRUNCATED’?
996 | if (data->codec->capabilities & CODEC_CAP_TRUNCATED)
| ^~~~~~~~~~~~~~~~~~~
| AV_CODEC_CAP_TRUNCATED
ffmpeg.c:996:34: note: each undeclared identifier is reported only once for each function it appears in
ffmpeg.c:997:23: error: ‘CODEC_FLAG_TRUNCATED’ undeclared (first use in this function); did you mean ‘AV_CODEC_FLAG_TRUNCATED’?
997 | data->enc->flags |= CODEC_FLAG_TRUNCATED;
| ^~~~~~~~~~~~~~~~~~~~
| AV_CODEC_FLAG_TRUNCATED
ffmpeg.c:1028:34: error: ‘CODEC_CAP_DELAY’ undeclared (first use in this function); did you mean ‘AV_CODEC_CAP_DELAY’?
1028 | if (data->codec->capabilities & CODEC_CAP_DELAY)
| ^~~~~~~~~~~~~~~
| AV_CODEC_CAP_DELAY
ffmpeg.c: In function ‘decode_packet’:
ffmpeg.c:1294:3: warning: ‘avcodec_decode_audio4’ is deprecated [-Wdeprecated-declarations]
1294 | len = avcodec_decode_audio4 (data->enc, frame, &got_frame, pkt);
| ^~~
In file included from /usr/include/libavformat/avformat.h:312,
from ffmpeg.c:67:
/usr/include/libavcodec/avcodec.h:3024:5: note: declared here
3024 | int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
| ^~~~~~~~~~~~~~~~~~~~~
ffmpeg.c: In function ‘seek_in_stream’:
ffmpeg.c:1406:2: warning: ‘codec’ is deprecated [-Wdeprecated-declarations]
1406 | avcodec_flush_buffers (data->stream->codec);
| ^~~~~~~~~~~~~~~~~~~~~
In file included from ffmpeg.c:67:
/usr/include/libavformat/avformat.h:880:21: note: declared here
880 | AVCodecContext *codec;
| ^~~~~
make[3]: *** [Makefile:416: libffmpeg_decoder_la-ffmpeg.lo] Error 1
#########################################

version 2.6, on the other hand, compiles without problems even with ffmpeg, but unfortunately does not work with alsa.....