>>PANIC<< dlopen failed for module 'alsa' (libbx_soundalsa.so): file not found

everyone I am learning OS by http://www.jamesmolloy.co.uk/tutorial_html/2.-Genesis.html.

However after I run "./run_bochs.sh", I got two panics

Event type: PANIC
Device: [      ]
Message: dlopen failed for module 'alsa' (libbx_soundalsa.so): file not found
...

Event type: PANIC
Device: [SNDCTL]:
Message: no waveout support present

I selected "cont" anyway for each panic, my emulator screen displays nothing, and my "bochsout.txt" is not what the tutorial says. the bottom of my txt file is

012051013i[CPU0  ] math_abort: MSDOS compatibility FPU exception
00420567000i[XGUI  ] charmap update. Font is 9 x 16
00697179000i[KBD   ] internal keyboard buffer full, ignoring scancode.(9c)
01048656000e[FLOPPY] cannot determine media geometry, trying to use defaults
01048656000i[FLOPPY] fd0: '/dev/loop0' ro=0, h=2,t=80,spt=18
01258449000e[FLOPPY] cannot determine media geometry, trying to use defaults
01258449000i[FLOPPY] fd0: '/dev/loop0' ro=0, h=2,t=80,spt=18

which the tutorial is

00074621500i[CPU  ] | EAX=deadbaba  EBX=0002d000  ECX=0001edd0 EDX=00000001
00074621500i[CPU  ] | ESP=00067ec8  EBP=00067ee0  ESI=00053c76 EDI=00053c77
00074621500i[CPU  ] | IOPL=0 id vip vif ac vm rf nt of df if tf sf zf af pf cf
00074621500i[CPU  ] | SEG selector     base    limit G D
00074621500i[CPU  ] | SEG sltr(index|ti|rpl)     base    limit G D
00074621500i[CPU  ] |  CS:0008( 0001| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] |  DS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] |  SS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] |  ES:0010( 0002| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] |  FS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] |  GS:0010( 0002| 0|  0) 00000000 000fffff 1 1
00074621500i[CPU  ] | EIP=00100027 (00100027)
00074621500i[CPU  ] | CR0=0x00000011 CR1=0 CR2=0x00000000
00074621500i[CPU  ] | CR3=0x00000000 CR4=0x00000000
00074621500i[CPU  ] >> jmp .+0xfffffffe (0x00100027) : EBFE

I can't find solution online, could anyone help here ??