I see this error too on Groovy, after installing Ubuntu studio and
trying to launch studio-controls.
➜ ~ studio-controls
install path: /usr
Traceback (most recent call last):
File "/usr/bin/studio-controls", line 1425, in <module>
us = StudioControls()
File "/usr/bin/studio-controls", line 431, in __init__
jack.set_error_function(callback=self.jack_error)
File "/usr/lib/python3/dist-packages/jack.py", line 2974, in
set_error_function
_set_error_or_info_function(callback, _lib.jack_set_error_function)
File "/usr/lib/python3/dist-packages/jack.py", line 3013, in
_set_error_or_info_function
def callback_wrapper(msg):
SystemError: ffi_prep_closure(): bad user_data (it seems that the version of
the libffi library seen at runtime is different from the 'ffi.h' file seen at
compile-time)
➜ ~
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https://bugs.launchpad.net/bugs/1912535
Title:
[SRU] python-cffi and libffi in Groovy need a no-change rebuild
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