Undefined symbol: mpv_render_context_create

[mattfj10]

I recently installed hypnotix via the .deb file, however, when I try to launch it I get an exception:

  File "/usr/lib/hypnotix/hypnotix.py", line 24, in <module>
    import mpv
  File "/usr/lib/hypnotix/mpv.py", line 567, in <module>
    _handle_func('mpv_render_context_create',               [MpvRenderCtxHandle, MpvHandle, POINTER(MpvRenderParam)],   c_int, ec_errcheck,     ctx=None)
  File "/usr/lib/hypnotix/mpv.py", line 478, in _handle_func
    func = getattr(backend, name)
  File "/usr/lib/python3.6/ctypes/__init__.py", line 361, in __getattr__
    func = self.__getitem__(name)
  File "/usr/lib/python3.6/ctypes/__init__.py", line 366, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /usr/lib/x86_64-linux-gnu/libmpv.so.1: undefined symbol: mpv_render_context_create
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 154, in apport_excepthook
    os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o640), 'wb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/var/crash/_usr_lib_hypnotix_hypnotix.py.1000.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/hypnotix/hypnotix.py", line 24, in <module>
    import mpv
  File "/usr/lib/hypnotix/mpv.py", line 567, in <module>
    _handle_func('mpv_render_context_create',               [MpvRenderCtxHandle, MpvHandle, POINTER(MpvRenderParam)],   c_int, ec_errcheck,     ctx=None)
  File "/usr/lib/hypnotix/mpv.py", line 478, in _handle_func
    func = getattr(backend, name)
  File "/usr/lib/python3.6/ctypes/__init__.py", line 361, in __getattr__
    func = self.__getitem__(name)
  File "/usr/lib/python3.6/ctypes/__init__.py", line 366, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /usr/lib/x86_64-linux-gnu/libmpv.so.1: undefined symbol: mpv_render_context_create

This happens whenever I try to launch, no UI shows up or any indication of something being wrong, I have to run this through a terminal to get the log output. Has anyone else had this issue before? I can't find any reference to it on the github issues page for this project.

[lulol]

Not sure if would be of any help, but do you have libmpv1 package installed/updated?

In my LM20.1 just searched for your error and checked:

$ dpkg -S /usr/lib/x86_64-linux-gnu/libmpv.so.1
libmpv1:amd64: /usr/lib/x86_64-linux-gnu/libmpv.so.1

$ dpkg -l libmpv1
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version         Architecture Description
+++-==============-===============-============-=======================================================
ii  libmpv1:amd64  0.32.0-1ubuntu1 amd64        video player based on MPlayer/mplayer2 (client library)

$ nm --dynamic /usr/lib/x86_64-linux-gnu/libmpv.so.1 | grep mpv_render_context_create
0000000000124e20 T mpv_render_context_create

$ apt-cache depends hypnotix
hypnotix
  Depends: gir1.2-xapp-1.0
  Depends: python3
  Depends: python3-gi
  Depends: python3-setproctitle
  Depends: xapps-common
 |Depends: dconf-gsettings-backend
  Depends: <gsettings-backend>
    dconf-gsettings-backend
    xfconf-gsettings-backend
  Depends: libmpv1
  Depends: python3-imdbpy
  Depends: python3-gi-cairo
  Recommends: youtube-dl

The mpv package is not listed as a dependency for hypnotix but I have it installed. Not sure if it's necessary. You may try to install it also if not already installed.

[Axel-Erfurt]

Which deb file do you have installed?

The one from hypnotix Releases ist too old.

Try Version 2.0 from pkgs.org or from my fork Releases

[mattfj10]

Not sure if would be of any help, but do you have libmpv1 package installed/updated?

In my LM20.1 just searched for your error and checked:

$ dpkg -S /usr/lib/x86_64-linux-gnu/libmpv.so.1
libmpv1:amd64: /usr/lib/x86_64-linux-gnu/libmpv.so.1

$ dpkg -l libmpv1
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version         Architecture Description
+++-==============-===============-============-=======================================================
ii  libmpv1:amd64  0.32.0-1ubuntu1 amd64        video player based on MPlayer/mplayer2 (client library)

$ nm --dynamic /usr/lib/x86_64-linux-gnu/libmpv.so.1 | grep mpv_render_context_create
0000000000124e20 T mpv_render_context_create

$ apt-cache depends hypnotix
hypnotix
  Depends: gir1.2-xapp-1.0
  Depends: python3
  Depends: python3-gi
  Depends: python3-setproctitle
  Depends: xapps-common
 |Depends: dconf-gsettings-backend
  Depends: <gsettings-backend>
    dconf-gsettings-backend
    xfconf-gsettings-backend
  Depends: libmpv1
  Depends: python3-imdbpy
  Depends: python3-gi-cairo
  Recommends: youtube-dl

The mpv package is not listed as a dependency for hypnotix but I have it installed. Not sure if it's necessary. You may try to install it also if not already installed.

Ahh I'm on Linux mint 19, do you think that's a likely issue here? Perhaps version incompatibility with some dependencies?

[Axel-Erfurt]

The mpv package is not listed as a dependency for hypnotix but I have it installed. Not sure if it's necessary. You may try to install it also if not already installed.

hypnotix already has it, it's in the same folder as hypnotix.py

/usr/lib/hypnotix/mpv.py

[lulol]

Have checked the Ubuntu Bionic base package used by LM19 and libmpv1 is missing the mpv_render_context_create function.

So, you need a newer ibmpv1 version to make it work with hypnotix, either looking for someone that already compiled the mpv package for LM19 or doing it yourself.

Also #45, #92.