Linux Manjaro / REAPER v6.76 / SWS 2.13.2.0 : ReaLearn 2.14.3 Vsti won't open

[SoliDeoGloria2]

Hi! The title says it all. I have to revert to Realearn 2.13.1 to have the ReaLearn plugin available. With 2.14.3, it simply doesn't appear. I reverted directly to the last known working version, since I have to work tomorrow with REAPER and don't have much time to test other versions.

If you need any other feedback, I'm at your disposal.

Thanks in advance!

[SoliDeoGloria2]

Hi! With Realearn v15 pre1, I still have the same problem : ReaLearn does not appear, as if it were not installed... And now, with the current REAPER pre cycle, I get this when I load a project with ReaLearn v 2.13.1 (the last one working):

===== ATTENTION =====

Sorry, an unknown error occurred in REAPER plug-in ReaLearn. REAPER should continue to work but ReaLearn might show unexpected behavior until restarting REAPER. If you feel like saving your project file at this point, better save it as a new file because this error could have messed up the plug-in state.

In any case, please report this error:

1. Prepare an e-mail containing:
   • The error information further below (IMPORTANT)
   • Some instructions on how to reproduce the error (IMPORTANT)
2. If possible, attach the following files:
   • Your REAPER project file (.rpp)
   • Your REAPER configuration file (reaper.ini)
3. Send it to info@helgoboss.org

Thank you for your support!

--- cut ---
REAPER version: 6.78+dev0325/linux-x86_64
Module name: ReaLearn
Module version: v2.13.1/x86_64 rev bf74f7 (2022-07-09 14:32:54 UTC)
Module base address: -
Module size: -

Message: MIDI input device IDs must be <= 62, got 63

0: 0x7f0d789d6947 -
1: 0x7f0d789d89b5 -
2: 0x7f0d788b5a57 -
3: 0x7f0d78a20e00 -
4: 0x7f0d78a20c37 -
5: 0x7f0d78a1eff4 -
6: 0x7f0d78a20969 -
7: 0x7f0d77b7d793 -
8: 0x7f0d7891055f -
9: 0x7f0d78451f00 -
10: 0x7f0d783a2dcd -
11: 0x7f0d782b6309 -
12: 0x7f0d78074599 -
13: 0x7f0d77b7cb4a -
14: 0x7f0d782cb8d9 -
15: 0x7f0d78036db1 -
16: 0x7f0d789fbaf2 -
17: 0x999b23 -
18: 0x7ebce7 -
19: 0x7c6183 -
20: 0x7c9922 -
21: 0x4c36b3 -
22: 0x904c76 -
23: 0x908ae4 -
24: 0x9096fa -
25: 0x50dac8 -
26: 0x541765 -
27: 0x550096 -
28: 0x56c780 -
29: 0x8039e0 -
30: 0x80d8ec -
31: 0x819e52 -
32: 0x7f0db14311c6 -
33: 0x7f0db1424c77 -
34: 0x7f0db143f4dd -
35: 0x7f0db14213ae -
36: 0x7f0db142894c -
37: 0x7f0db14311e8 -
38: 0x7f0db1449747 -
39: 0x7f0db144c61d -
40: 0x7f0db0b97cc3 -
41: 0x7f0db0be6058 -
42: 0x7f0db0d6687b - g_main_context_dispatch
43: 0x7f0db0dbd279 -
44: 0x7f0db0d65132 - g_main_context_iteration
45: 0x7f0db144f07a -
46: 0x7f0db1431532 -
47: 0x40cf06 -
48: 0x7f0db1713290 -
49: 0x7f0db171334a - __libc_start_main
50: 0x41a50a - _start
51: 0x0 -
--- cut ---

I hope this can be easily fixed...

Thanks in advance.

[helgoboss]

The latter issue is known and I will fix it around end of next week.

The former issue:
Did you install libxdo-dev? See installation instructions on GitHub.

If this doesn't help, try this and tell me about the result: #503 (comment)

Might be an older libc.

[SoliDeoGloria2]

Hi Helgoboss,

As I'm on Manjaro, I can´t find that libxdo-dev library neither in the repositories nor anywhere. There are only .deb files available elsewhere for Debian/Ubuntu distros. Am I supposed to install the .deb via debtap or anything like that?

Regarding the other issue, thanks so much! I'll wait until the fix.

[helgoboss]

I don't have Manjaro experience, sorry. Maybe it's named differently in Manjaro. You could search for "xdo" in its package manager.

[SoliDeoGloria2]

Well, xdo didn't work, but the procedure in your link shows this :

#include<stdio.h>
#include <dlfcn.h>

int main() {
printf("Test\n");
dlopen("./realearn.so", RTLD_NOW);
printf("%s", dlerror());
return 0;
}

I hope it shows the cause of the issue...

[helgoboss]

Hi, you posted the code, not the result.

[SoliDeoGloria2]

Ooops! Sorry, here it is :

libxdo.so.3: cannot open shared object file: No such file or directory

But "xdo" (which I have already installed) didn't seem to work here. Strange...

[helgoboss]

So it can't find the XDO library even it's installed. Maybe under a different name. To be honest, I don't know for sure how to deal with this or how this library binding is supposed to work.

I don't really like to depend on libxdo anyway, I hope to get rid of this dependency in some way. But it will take a while, I don't see any quick solution now.

[SoliDeoGloria2]

Well, I don't have any problem if I have to pin the 2.13.1 version and wait to upgrade. It works fine here. And yes, it will be better if you find the way to get rid of that annoying library. Take your time, for now I can go on using ReaLearn...

[alienbee]

Manjaro latest : Reaper v6.78 - Same problem. Realearn not firing up with projects that use it , shows its installed inside in ReaPack, but wont make an appearance in the plugin list. errors out for projects using it on load.

installed the 2.13, its back to working

[helgoboss]

Are you sure it's because of libxdo? Or is it libc version? Did you do the check?

I'm thinking about removing the mouse control feature from the Linux versions in general, then the rest would work at least (if your issue is related to libxdo).

[helgoboss]

Mmh, removing the mouse control feature is not so nice, if I think about it. It would remove the possibility to change the param under the mouse cursor.

One thing I can do very quickly for the next release is to make the issue less intense. By building the official release on a slightly older version of Ubuntu (20 instead of 22) ... which hopefully makes a little difference when it comes to the required libc and libxdo versions.

[alienbee]

_> Are you sure it's because of libxdo? Or is it libc version? Did you do the check?

I'm thinking about removing the mouse control feature from the Linux versions in general, then the rest would work at least (if your issue is related to libxdo)._

Im not a programmer, but i use the program, I just checked in package manager to see if the "libxdo" is installed..is this what you need? - it is not installed on my Manjaro, im on the latest version. I use Relearn extensively on all my projects, VERY usfull, much appreciated =)

[SoliDeoGloria2]

Mmh, removing the mouse control feature is not so nice, if I think about it. It would remove the possibility to change the param under the mouse cursor.

One thing I can do very quickly for the next release is to make the issue less intense. By building the official release on a slightly older version of Ubuntu (20 instead of 22) ... which hopefully makes a little difference when it comes to the required libc and libxdo versions.

Well, as I see the fix released I'll try it out and tell you how it goes here.

Thanks so much in advance!

[helgoboss]

Upcoming release 2.15.0-pre.3 Linux builds are built using Ubuntu 20 instead of 22. Hopefully improves compatibility with older libc versions.

[SoliDeoGloria2]

Hi Helgoboss! For now, REAPER V6.80 with Realearn 2.15 won't work. I'm sticking to 2.13.1 for now, the last seemingly working version...

[helgoboss]

Okay, thanks for the report. I will not be able to focus on non-Ubuntu Linux distributions for quite a while. Let's hope that a future Manjaro update fixes it (as it seems to be related to the XDO version) before I get the time.