Failed to Instantiate lv2 plugin for Pianoteq 8 STAGE

Installation & Configuration Linux
#1

Hi boys and Girls.

So, I’m using Ardour 6.9.0~ds0
“After Bach”
(rev 6.9.0~ds0-1build1)
Intel 64-bit

Running on Linux Mint 21.3 Virginia, on a Lenovo Thinkpad x230 i5.

I recently purchased Pianoteq 8.2.2 STAGE which works perfectly as standalone app.

However, having installed the x86-64bit lv2 in my local .lv2 folder, it seems Ardour doesn’t want to load it :
2024-06-05T20:02:12 [ERROR]: LV2: Failed to instantiate plugin https://www.modartt.com/lv2/Pianoteq8STAGE
2024-06-05T20:02:12 [WARNING]: Failed to add Synth Plugin to newly created track.

any clues?

I was previously using Pianoteq 4, that works OK but only an x386 was supplied back then.

Regards
Steve

#2

Chances are that this distro is too old.

Run Ardour from the commandline (open a terminal, run ardour6) there may be more information shown there.

Also try a recent Ardour8 (demo is fine https://nightly.ardour.org/ can be installed in parallel to distro builds).

#3

Too old? Virginia was released Jan 2024.

Command line didn’t tell me much - apart from a few error messages about Pianoteq v4, which oddly enough, works OK. I might try removing it to see if that helps.

Steve

#4

OK. 21.3 and Ardour 6 threw me off.

I thought it was released in 3rd quarter of 2021 which also matches Ardour 6.9’s release date (August 2021).

#5

It’s based on Ubuntu 22.04, which was released in April 2022

#6

It’s a fair comment, and I guess there could be some clash between the latest plugin library version and older-compiled versions of Ardour.

I see that Modartt (makers of Pianoteq) have some older versions available, I think I will try some of those and see if they work better.

I’ll keep you posted!

Regards
Steve

#7

FWIW, the v7.05 version I bought some years back still plays flawlessly for me on AVL MX 21.3.

#8

Also FWIW, I’m running Mint 21.2 and can confirm the Failed to Instantiate LV2 for Pianoteq 8.2 STAGE for Ardour 6.9, though it runs fine in Ardour 7.x and 8.x.

I just loaded up an old project created with Ardour 6.x, and it looks like I was using Pianoteq 6 successfully back then (circa Feb 2021). I no longer have that installed so I tried replacing it with Pteq 8.2 STAGE and sure enough it failed to load.

-Manuel

#9

Any lines at which might be interesting just prior to the one you quoted?

#10

UPDATE: I tried one of the older Pianoteq Plugins, v7, that works fine in Ardour 6. I guess I will live with that until I install a more up-to-date version of Ardour.
Thanks for the suggestions everyone.

Regards
Steve