Machine/@currentSnapshot attribute is missing

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I am working on building some application for linux on a debian distro of linux on a virtualbox. Everything was going great. I turned off my virtualbox and when I start it back up, I get this error and now I cannot even access the os.

Error in /home/****/VirtualBox VMs/Debian/Debian.vbox (line 9) -- 
Snapshots present but required Machine/@currentSnapshot attribute is 
missing.

/build/virtualbox-mnp3zF/virtualbox-5.0.32-dfsg/src/VBox/Main/src-
server/MachineImpl.cpp[480] (nsresult Machine::initFromSettings(VirtualBox*, 
const com::Utf8Str&, const com::Guid*)).

Result Code: NS_ERROR_FAILURE (0x80004005) 
Component: MachineWrap
Interface: IMachine {f30138d4-e5ea-4b3a-8858-a059de4c93fd}
Callee: IVirtualBox {0169423f-46b4-cde9-91af-1e9d5b6cd945}
virtualbox
asked on Stack Overflow Mar 23, 2017 by James Mercer • edited Mar 23, 2017 by James Mercer

2 Answers

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Try to add the following attribute to the line 9 of your vbox file: currentSnapshot="{xxx}", where xxx should correspond to snapshot uuid (it's a tag within the same file) hope this works for you...

answered on Stack Overflow Mar 28, 2017 by Lyoncha
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confirmed, this just happened to me with Oracle VirtualBox 5.1.20 r114628 (Qt5.6.2) ..... and your fix saved all my guest os configuration work of several weeks!!!! thank you so much, Lyoncha!

broken:

<VirtualBox xmlns="http://www.virtualbox.org/" version="1.16-windows">
  <Machine uuid="{d82345e-849b-435402-adgbc-a3210d234d7}" name="MyGuest3" OSType="Ubuntu_64" snapshotFolder="Snapshots" currentStateModified="false" lastStateChange="2017-04-21T17:19:05Z">
    <MediaRegistry>

fixed:

<VirtualBox xmlns="http://www.virtualbox.org/" version="1.16-windows">
  <Machine currentSnapshot="{2345623asdf45sdg}" uuid="{d82345e-849b-435402-adgbc-a3210d234d7}" name="MyGuest3" OSType="Ubuntu_64" snapshotFolder="Snapshots" currentStateModified="false" lastStateChange="2017-04-21T17:19:05Z">
    <MediaRegistry>
answered on Stack Overflow Apr 21, 2017 by Henry

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