Today I encountered a pretty big problem, my session just won’t load. Here’s the error message:
—ERROR: Could not set session state from XML ERROR: Session: cannot create Playlist from XML description. ERROR: Playlist: cannot create region from XML ERROR: Session: XMLNode describing a MidiRegion references an unknown source id =38201 ERROR: Session: cannot create Region from XML description. Can not load state for region ‘Take1_Vital-37.1’ ERROR: Session: XMLNode describing a MidiRegion references an unknown source id =517122 …
This changes every time I delete the parts from the xml with the unknown source id.
For example this is what I get after modifying the xml:
> —ERROR: Could not set session state from XML > ERROR: Session: cannot create Playlist from XML description. > ERROR: Playlist: cannot create region from XML > ERROR: Session: XMLNode describing a MidiRegion references an unknown source id =38243 > ERROR: Session: cannot create Region from XML description. Can not load state for region ‘Take1_Vital 4-26.1’ > ERROR: Session: XMLNode describing a MidiRegion references an unknown source id =516941
This goes on seemingly forever, until I delete my whole project.
I have no idea what’s going on.
**The problem started when I pressed the arrow keys to move the playhead, but in a strange way it also moved the whole ruler thing on the top making my project unsaveble. I “Just quit”, as the popup said to do so, and now I’m here.
Hey, it looks like I am facing the same issue suddenly. I was able to load the session many times, but all of a sudden I get the same kind of errors and cannot get out of this.
@paul is it something I can fix if you just describe how to or do I have to upload the whole session (including MIDI and audio files) so you can do it ?
Note that I stuck with version 6.9 because 7.1 (back when I tried it) was not loading my VST plugins at all. I will try 7.3 when I have the time. But right now, I really would like to recover my 6.9 session!
Haha, got a similar issue today for an audio region after Ardour hang and I had to kill it.
I opened the Ardour session with an XML editor and removed the related region.
I was lucky because I could restart the session successfully and added that Audio file from the sources.
Saved 3 hours of work
I got to the bottom of my issue. It turns out, 2 of my MIDI takes in the interchange are empty, file size is 0. I copied a non empty MIDI file into those and now the session loads fine. How did they end up like this ?? They were perfectly fine for weeks. Something must have happened at some low level (the session files are read from a mounted disk, FS is xfs - I suspect some mishap when it got unmounted at shutdown). But the end result is that I have to redo these tracks … what a b…tch!
Ah yeah, don’t lecture me about backup my backup disk died a few days ago …
As mentioned, 6.9 has a “killer workflow” with MIDI regions. Right now I can’t remember the precuse details but it is somehow related to the “midi region copies are unlinked”. For some people (it seems) it is a common thing to do; for others, they never do this (and so the bug was elusive for quite a long time).
@paul yeah, that must be part of it since I had copied some MIDI regions and unlinked them for sure, as I wanted to tweak each of them individually. But the root-cause for me is definitely the disappearance of the file content outside ardour. I can’t see how ardour would empty the disk file all of a sudden, people would have shouted long ago if there had been such a bug …
Ive just installed Ardour 7.3 onto MX AVL 21.3.
It seems to hang on Scanning VST3 Plugins at session setup
Earlier today I ran 7.2 without any problems
Do you know what may be causing this? I havent installed any extra plugins.
Heres a screenshot:
Yeah, so I somehow managed to built Ardour from source. (It wasn’t easy but I learned a lot along the way). There’s only one problem. None of the plugins UI’s would show up. The plugins technicly function but no UI. I have no idea why. If anyone can help me please do.