Crash on MacOS when architecture is ARM

[Timdebruijn]

When trying to run the app 1.8.0(the downloaded .dmg from the release page) on a M1 Pro with MacOS 26.0.1 I get the following errors:

/Applications/Sideband.app/Contents/Resources/venv/bin /Applications/Sideband.app/Contents/Resources
Traceback (most recent call last):
  File "/Applications/Sideband.app/Contents/Resources/yourapp", line 5, in <module>
    from sbapp import main
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/sbapp/main.py", line 20, in <module>
    import RNS
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/__init__.py", line 42, in <module>
    from .Identity import Identity
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Identity.py", line 41, in <module>
    from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/__init__.py", line 38, in <module>
    from .Token import Token
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/Token.py", line 36, in <module>
    from RNS.Cryptography import AES
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/AES.py", line 39, in <module>
    from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/ciphers/__init__.py", line 11, in <module>
    from cryptography.hazmat.primitives.ciphers.base import (
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/ciphers/base.py", line 10, in <module>
    from cryptography.hazmat.bindings._rust import openssl as rust_openssl
ImportError: dlopen(/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so, 0x0002): tried: '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (no such file), '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64'))`

[B08Z]

+1 I have the same issue.

[markqvist]

Does the 1.7.0 DMG work?

[Timdebruijn]

No then I get the following error:

➜  MacOS ./Sideband
/Applications/Sideband.app/Contents/Resources/venv/bin /Applications/Sideband.app/Contents/Resources
[INFO   ] [Logger      ] Record log in /Users/timdebruijn/Library/Application Support/io.unsigned.sideband/logs/kivy_25-11-09_8.txt
[INFO   ] [Kivy        ] v2.3.0
[INFO   ] [Kivy        ] Installed at "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.11.2 (main, Mar 14 2025, 19:38:20) [Clang 15.0.0 (clang-1500.1.0.2.5)]
[INFO   ] [Python      ] Interpreter at "/Applications/Sideband.app/Contents/Resources/venv/bin/Sideband"
[INFO   ] [Logger      ] Purge log fired. Processing...
[INFO   ] [Logger      ] Purge finished!
[2025-11-09 21:59:14] [Error]    Error while locating UI scale file: can't concat str to bytes

[Timdebruijn]

The workaround for the 1.8.0 version to get quite the same error as the 1.7.0 version:

➜  MacOS arch -x86_64 ./Sideband
/Applications/Sideband.app/Contents/Resources/venv/bin /Applications/Sideband.app/Contents/Resources
[INFO   ] [Logger      ] Record log in /Users/timdebruijn/Library/Application Support/io.unsigned.sideband/logs/kivy_25-11-09_9.txt
[INFO   ] [Kivy        ] v2.3.0
[INFO   ] [Kivy        ] Installed at "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.11.2 (main, Mar 14 2025, 19:38:20) [Clang 15.0.0 (clang-1500.1.0.2.5)]
[INFO   ] [Python      ] Interpreter at "/Applications/Sideband.app/Contents/Resources/venv/bin/Sideband"
[INFO   ] [Logger      ] Purge log fired. Processing...
[INFO   ] [Logger      ] Purge finished!
objc[11619]: Class SDLApplication is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640d80) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb398). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLAppDelegate is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640dd0) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb3e8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLTranslatorResponder is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640ee8) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb460). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLMessageBoxPresenter is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640f10) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb488). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_cocoametalview is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640e70) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb4d8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLOpenGLContext is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640e20) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb528). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_ShapeData is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640f88) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb5a0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_CocoaClosure is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640fd8) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb5f0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_VideoData is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114641208) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb640). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_WindowData is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x1146410c8) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb690). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLWindow is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x1146410f0) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb6b8). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class Cocoa_WindowListener is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114641118) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb6e0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDLView is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114641190) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb758). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class METAL_RenderData is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640d08) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb7d0). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class METAL_TextureData is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114640d58) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb820). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_RumbleMotor is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114641000) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb848). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
objc[11619]: Class SDL_RumbleContext is implemented in both /Applications/Sideband.app/Contents/Frameworks/SDL2.framework/Versions/A/SDL2 (0x114641050) and /Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/ffpyplayer/.dylibs/libSDL2-2.0.0.dylib (0x134edb898). This may cause spurious casting failures and mysterious crashes. One of the duplicates must be removed or renamed.
[2025-11-09 22:02:59] [Error]    Error while locating UI scale file: can't concat str to bytes

[B08Z]

This is the error I get with Version 1.70 - seems to be the same error for V 1.80

Mac (uname)
MacBook-Pro.local 25.0.0 Darwin Kernel Version 25.0.0: Wed Sep 17 21:41:45 PDT 2025; root:xnu-12377.1.9~141/RELEASE_ARM64_T6000 arm64

/Applications/Sideband.app/Contents/Resources/venv/bin /Applications/Sideband.app/Contents/Resources
Traceback (most recent call last):
  File "/Applications/Sideband.app/Contents/Resources/yourapp", line 5, in <module>
    from sbapp import main
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/sbapp/main.py", line 20, in <module>
    import RNS
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/__init__.py", line 42, in <module>
    from .Identity import Identity
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Identity.py", line 41, in <module>
    from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/__init__.py", line 38, in <module>
    from .Token import Token
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/Token.py", line 36, in <module>
    from RNS.Cryptography import AES
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/RNS/Cryptography/AES.py", line 39, in <module>
    from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/ciphers/__init__.py", line 11, in <module>
    from cryptography.hazmat.primitives.ciphers.base import (
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/ciphers/base.py", line 10, in <module>
    from cryptography.hazmat.bindings._rust import openssl as rust_openssl
ImportError: dlopen(/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so, 0x0002): tried: '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (no such file), '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/_cffi_backend.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64'))

Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
Deleting expired sessions...none found.```

[markqvist]

Should be fixed in the latest release.

[metrafonic]

Looks like it is still an issue on 1.8.2:

% /Applications/Sideband.app/Contents/MacOS/Sideband 
/Applications/Sideband.app/Contents/Resources/venv/bin /Applications/Sideband.app/Contents/Resources
Traceback (most recent call last):
  File "/Applications/Sideband.app/Contents/Resources/yourapp", line 5, in <module>
    from sbapp import main
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/sbapp/main.py", line 30, in <module>
    from LXST._version import __version__ as lxst_version
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/__init__.py", line 3, in <module>
    from .Pipeline import Pipeline
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/Pipeline.py", line 1, in <module>
    from .Sources import *
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/Sources.py", line 8, in <module>
    from .Sinks import LocalSink
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/Sinks.py", line 7, in <module>
    from LXST.Codecs import Opus
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/Codecs/__init__.py", line 5, in <module>
    from .Codec2 import Codec2 as Codec2
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/LXST/Codecs/Codec2.py", line 4, in <module>
    import pycodec2
  File "/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/pycodec2/__init__.py", line 1, in <module>
    from .pycodec2 import *
ImportError: dlopen(/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/pycodec2/pycodec2.cpython-311-darwin.so, 0x0002): tried: '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/pycodec2/pycodec2.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/pycodec2/pycodec2.cpython-311-darwin.so' (no such file), '/Applications/Sideband.app/Contents/Resources/venv/lib/python3.11/site-packages/pycodec2/pycodec2.cpython-311-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64e.v1' or 'arm64' or 'arm64'))

[metrafonic]

Also getting a strange issue when installing via pip3 with python3.13 and via pipx installed on the same mac:

sideband -vvv
....
 Traceback (most recent call last):
   File "/Users/user/.local/bin/sideband", line 3, in <module>
     from sbapp import main
   File "/Users/user/.local/pipx/venvs/sbapp/lib/python3.13/site-packages/sbapp/main.py", line 6932, in <module>
     run()
     ~~~^^
   File "/Users/user/.local/pipx/venvs/sbapp/lib/python3.13/site-packages/sbapp/main.py", line 6926, in run
     SidebandApp().run()
     ~~~~~~~~~~~^^
   File "/Users/user/.local/pipx/venvs/sbapp/lib/python3.13/site-packages/sbapp/main.py", line 530, in __init__
     self.sideband = SidebandCore(self, config_path=self.config_path, is_client=False, verbose=(args.verbose or __debug_build__),rns_config_path=args.rnsconfig)
                     ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/Users/user/.local/pipx/venvs/sbapp/lib/python3.13/site-packages/sbapp/sideband/core.py", line 205, in __init__
     self.app_dir     = os.path.join(plyer.storagepath.get_home_dir(), ".config", "sideband")
                        ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "<frozen posixpath>", line 90, in join
   File "<frozen genericpath>", line 191, in _check_arg_types
 TypeError: Can't mix strings and bytes in path components

Adding .decode() to plyer.storagepath.get_home_dir() makes it run from pip

[markqvist]

Well, apparently it is. I thought the build had been corrected, but I don't have an ARM mac, which makes this very hard to test for and debug :(

[markqvist]

If you install via pip and run from the command-line, does everything work?

[metrafonic]

I understand. Hope I can be of help. Installing via pip works (given the patch i mentioned earlier), however there are some issues with codecs which im trying to figure out. Eg:

[2025-11-28 16:01:03] [Error]    Error while executing remote identified callback from <xxxxxxxxxxxxx>. The contained exception was: The Opus library wasn't found or couldn't be loaded (maybe you're trying to use 64bit libraries with 32bit Python?)

[metrafonic]

I almost got calls to work via ULBW (codec2?) I can hear calls from SB android, but not encode correctly (so that SB Android could hear). Sideband on fedora linux could encode the other codecs but not ULBW, so it seems like for me that Linux and Mac have issues encoding via codec2, and mac also has issues getting opus2 to work.