Apr 13 2011
VirtualBox Upgrade and Resumption Error
I upgraded my VirtualBox to the latest version (4.0.4) last weekend. Everything seemed fine.
Yesterday afternoon I paused a virtual machine for the first time this week, and last night I tried to resume it. To my horror it would not start, and I kept getting the following error:
Failed to open a session for the virtual machine Windows 7. Implementation of the USB 2.0 controller not found! Because the USB 2.0 controller state is part of the saved VM state, the VM cannot be started. To fix this problem, either install the 'Oracle VM VirtualBox Extension Pack' or disable USB 2.0 support in the VM settings (VERR_NOT_FOUND). Unknown error creating VM (VERR_NOT_FOUND).
After a few minutes of panicking I discovered that this is a known bug, as described in Ticket #8182 Unexpected error about USB 2.0!. Luckily, the described fix worked perfectly for me :D
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