"please make sure you have terminated all VMs and upgraded any extension packs.
If this error persists, try re-installing VirtualBox.
(VERR_PDM_DEVHLPR3_VERSION_MISMATCH)."
I'm not sure about how the error message can be more clean
anyhow, I sent an email to vbox-dev mail list, maybe they can do something more
user friendly
** Changed in: virtualbox (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1660093
Title:
VirtualBox error - device helper structure version has changed
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