1. Click MC icon to star the program.

2. The splash screen appears, and along the bottom the various modules and plugins can be seen loading UNTIL

3. The error panel appears with "EssentialResourceNotAvailableError" with the "Quit" option, and the lower part of the splash screen showing that MC "Reloading plugin: OpenIO_VirtIO.acf".

The update was installed through Avid Link's update notification and option.  I though that might have been an issue (had problems in the past with Avid link update) so I downloaded the full installer from "May Account" and attempted a "repair" install.  No joy.  I then uninstalled and re-installed from scratch (with restarts between of course) and on installation saved the install log.

The problem persisted.  But when I searched the install log for "OpenIO_VirtIO.acf" it shows the module installed to C:\Program Files\Avid\Avid Media Composer\AVX2_Plug-Ins which I verified - it is there.

I subsequently found in the thread announcing the availability of MC 2022.4 that others had this problem and solved it by unchecking the NDI related install options.

So, the question is this:

Does this error indicate that some NDI compatible hardware or third party software MUST be installed in order to support the NDI related plugins/modules?  If so, perhaps the default should be unchecked boxes for NDI / SRT during installation with a note detailing pre-reqs?

(I looked for such info in "Read Me" and "What's New" but didn't find it.)

UPDATE: I reinstalled without the NDI / SRT boxes checked.  The install log still shows "OpenIO_VirtIO.acf" installed, but I no longer get the error on startup.  So the error  must be that if you select to install the NDI / SRT plugins, there must be some additional module required by "OpenIO_VirtIO.acf" that is not also installed.

Same problem get to:   Reloading plugin: open IO_VirtlO.aef and  everything stops.  Get the Essential Resouorce Not Available with option to quit.  

Need MC for project soon.  Should i go back to the 2021 versionj?

Tried uninstall/reinstall with same result.

This is a known bug that they are working on, but I don't know when a resolution is expected.

FWIW, I get the same error, but connecting a Blackmagic Ultrastudio Mini Monitor makes the error go away. If you have a 3rd party I/O or monitoring solution, make sure it's connected and on.

genglehardt:

Should i go back to the 2021 versionj?

If you need the NDI options to work, then yes you should go back to 2021.x for now.