Linuxsampler LV2 Fedora

Hello!
I bought me a new computer, and I installed Fedora 32 bit on it. I installed Fedora because of GNOME (KDE was too unstable) and I installed 32 bit because of all the VSTis, which are only available in 32 bit.

After installing Ardour, I installed Linuxsampler and Linuxsampler LV2 from the Planet CCRMA repository (http://ccrma.stanford.edu/planetccrma/software/), opened an old project, created with a 64 bit Kubuntu, but it doesn’t load Linuxsampler – Debugger returns:

[ERROR]:LV2: Failed to instantiate plugin http://linuxsampler.org/plugins/linuxsampler
[ERROR:]Referenz auf ein unbekanntes Plugin (“http://linuxsampler.org/plugins/linuxsampler” gefunden.
Vielleicht wurde es seit der letzten Verwendung entfert oder verschoben.

The two German sentences mean something like:
Found a reference to an unknown plugin (“http://linuxsampler.org/plugins/linuxsampler”).
Maybe, it has been deleted or removed since it has been used the last time.

A few milliseconds after showing it, Ardour crashes, so I had to make a screen shot for reading it. Ardour can open projects without Linuxsampler tracks, but if you try to add the Linuxsampler plugin, it crashes, showing the same error.

I also reinstalled Linuxsampler and Linuxsampler LV2, I installed RPM packages from other sources and I restarted my PC hundred times, it still crashes, showing me this error.

Does anyone know this error? I hope, someone knows an answer.

Kind regards,
Jano

It runs with the openSuSE-version! But the openSuSE version doesn’t support sound fonts. I read, I have to compile it myself from the SVN if I want to have sound font support. I give up, I’m going to try Highlife. If Highlife doesn’t work, I’ll try to compile LinuxSampler myself. Thank you for all your help. :slight_smile:

Probably you should give the exact versions of everything you are using so we can make a careful comparison. I installed Ardour-3.1.10 from the package on the Ardour website on a Fedora 17 64bit machine and as well as linuxsampler from CCRMA (1.0.0-6.svn2346.1.fc17.ccrma). I find Ardour3 + linuxsampler works as expected. One problem could be if you are reading an old project file which may not be compatible with the current Ardour3. Have you tried creating a new project with linuxsampler to see if that works? Also on a 32 bit machine the linuxsampler plugin should be here: /usr/lib/lv2/linuxsampler.lv2 - does this exist on your system?

Yes, the linuxsampler.lv2 exists, I wanted to write it in my first post, but i forgot it. And the linuxsampler.so is in it, as normal. My Linux Sampler version is nearly the same as yours, it’s only the Fedora 8 version (linuxsampler-1.0.0-6.svn2346.1.fc18.ccrma (32 bit)). The project, I used, is created with the same Ardour version in (the only difference is, that it was a 64 bit version, the Ardour folder of the 32 bit in /opt is called “Ardour-3.1.10-dbg”).

I’m able to create new Ardour projects, but adding a Linux Sampler track, as written, the same crash happens. On the Planet CCRMA website, the Fedora 18 repository is marked with “work in progress”. Should I try to install the Fedora 17 version?

Given that CCRMA support for Fedora 18 is a “work in progress” I would install with Fedora 17. Actually, I prefer AVLinux or kxstudio for audio work myself. I use Fedora at work, and thus not for audio, and as far as I can tell that even with CCRMA it is not the match of either of those distros. (but I know Fedora has its audio fans, and I have not tried all that hard so I’m sure it can be made to work just fine).

8 years later I have the same problem. Since this is the only thread with this error that search engines find, I’ll post my solution:

To arrive at the fix, I ran ardour from the terminal to see the output. So open any terminal, write ardour and press Enter.

This will start Ardour and show the session picker window. Open any session you’ve created previously (or create a new one).

Now go back to the terminal. The moment I knew something was wrong is when I saw this in the output:

Ardour: [INFO]: Loading bindings from /etc/ardour6/ardour.keys
Loading ui configuration file /etc/ardour6/clearlooks.rc
Found nothing along /home/artur/.config/ardour6/templates:/usr/share/ardour6/templates
ALSA lib rawmidi_hw.c:235:(snd_rawmidi_hw_open) open /dev/snd/midiC2D0 failed: No such device
lilv_world_add_plugin(): warning: Duplicate plugin <http://linuxsampler.org/plugins/linuxsampler>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/linuxsampler.lv2/
lilv_world_add_plugin(): warning: ... and      file:///usr/local/lib/lv2/linuxsampler.lv2/ (ignored)
Scanning folders for bundled LV2s: /usr/lib/ardour6/LV2
lilv_world_add_plugin(): warning: Duplicate plugin <http://linuxsampler.org/plugins/linuxsampler>
lilv_world_add_plugin(): warning: ... found in file:///usr/lib/lv2/linuxsampler.lv2/
lilv_world_add_plugin(): warning: ... and      file:///usr/local/lib/lv2/linuxsampler.lv2/ (ignored)

So I went to /usr/lib/lv2 and moved the /linuxsampler.lv2 directory somewhere else (Ardour is smart and changing the folder name isn’t enough) - ~/mybackups/ardour_linuxsampler_backup in my case. Make sure the /linuxsampler.lv2 directory does NOT exist in /usr/lib/lv2.

Then restart ardour then add the LinuxSampler plugin again. It worked for me this time.

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