Sonic Pi doesn't start

[NinaWilschut]

After using it once, unfortunately, it doesn't start again. I really need it to work because I will use it for my bachelor's project. The error has the following details:
Sonic Pi Boot Error Report

System Information

• Sonic Pi version: 3.1.0
• OS: macOS 10.14

GUI Log

/Users/ninawilschut/.sonic-pi/log/gui.log

[GUI] - Detecting port numbers...
[GUI] - GUI OSC listen port 4558
[GUI] -    port: 4558 [OK]
[GUI] - Server OSC listen port 4557
[GUI] -    port: 4557 [OK]
[GUI] - Server incoming OSC cues port 4559
[GUI] -    port: 4559 [OK]
[GUI] - Scsynth port 4556
[GUI] -    port: 4556 [Not Available]
[GUI] - Server OSC out port 4558
[GUI] - GUI OSC out port 4557
[GUI] - Scsynth send port 4556
[GUI] - Erlang router port 4560
[GUI] -    port: 4560 [Not Available]
[GUI] - OSC MIDI out port 4561
[GUI] -    port: 4561 [Not Available]
[GUI] - OSC MIDI in port 4562
[GUI] -    port: 4562 [OK]
[GUI] - Init script completed
[GUI] - using default editor colours
[GUI] - launching Sonic Pi Server:
[GUI] - starting UDP OSC Server on port 4558...
[GUI] - UDP OSC Server ready and listening
[GUI] - Ruby server pid registered: 12755
[GUI] - waiting for Sonic Pi Server to boot...
.
[GUI] - Sonic Pi Server failed to start with this error message: 
      > Port unavailable: 4556, is scsynth already running?
[GUI] - UDP OSC Server no longer listening
...........................................................
[GUI] - Critical error! Could not boot Sonic Pi Server.
[GUI] - stopping UDP OSC Server...

Server Errors

/Users/ninawilschut/.sonic-pi/log/server-errors.log

Server Output

/Users/ninawilschut/.sonic-pi/log/server-output.log

Sonic Pi server booting...
Using protocol: udp
Detecting port numbers...
Send port: 4558
Listen port: 4557
  - OK
Scsynth port: 4556
Port 4556 unavailable. Perhaps Sonic Pi is already running?

Scsynth Output

/Users/ninawilschut/.sonic-pi/log/scsynth.log

Process Log

/Users/ninawilschut/.sonic-pi/log/processes.log

Clearing pids: ["11973"]

Clearing [11973]
  -- command /Applications/Sonic Pi.app/Contents/MacOS/../../app/server/native/ruby/bin/ruby --enable-frozen-string-literal -E utf-8 /Applications/Sonic Pi.app/Contents/MacOS/../../app/server/ruby/bin/sonic-pi-server.rb -u 4557 4558 4556 4556 4559 4560 4561 4562
  -- removing /var/folders/kb/j58d2wfs1s98k31_0nl62ptc0000gn/T/sonic-pi-pids/11973
  -- unable to get ProcTable info for: 11973
  -- process: 11973 not running

Finished clearing pids

Started [12755] [-] /Applications/Sonic Pi.app/Contents/MacOS/../../app/server/native/ruby/bin/ruby --enable-frozen-string-literal -E utf-8 /Applications/Sonic Pi.app/Contents/MacOS/../../app/server/ruby/bin/sonic-pi-server.rb -u 4557 4558 4556 4556 4559 4560 4561 4562 [-] /var/folders/kb/j58d2wfs1s98k31_0nl62ptc0000gn/T/sonic-pi-pids/12755

I really hope you can help me resolve this problem.

Kind regards,
Nina

[SunderB]

Hi :)
It seems like some Sonic Pi processes may not have closed properly and are still using port 4556.
Try opening the System Monitor and close the processes with the following names (be careful not to close anything else you're working on!):

• scsynth (this seems like the likeliest culprit for this specific port!)
• m2o
• o2m
• sonic-pi
• beam.smp

If that doesn't work, see https://github.com/samaaron/sonic-pi/wiki/Troubleshooting-Issues#ports-unavailable for more suggestions. I hope this helps :)

[dmitrytrager]

Tried this config:

• Sonic Pi version: 3.1.0
• OS: macOS 10.14.6

Was able to run second time.
Any other env details maybe?

[samaaron]

We have completely overhauled the process with which we boot the system, and it would still be really great to know if this has somehow not resolved your situation.

Therefore, please feel free to re-open if this is still an issue with the recently released v4 of Sonic Pi - https://github.com/sonic-pi-net/sonic-pi/releases