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i get this error message: Failed to open a session for the virtual machine Fedora. The device helper structure version has changed. If you have upgraded VirtualBox recently, please make ...
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  1. #1
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    virtualbox problem


    i get this error message:

    Failed to open a session for the virtual machine Fedora.

    The device helper structure version has changed.

    If you have upgraded VirtualBox recently, 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).

    Result Code: NS_ERROR_FAILURE (0x80004005)
    Component: Console
    Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}

    please help

  2. #2
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    already reinstalled didnt help

  3. #3
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    anyone? this is very annoying

  4. #4
    Linux Guru Rubberman's Avatar
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    What is the host OS (distribution + version + kernel), and which version of VBox are you running? I have been running VBox on both Linux and Windows hosts for over 4 years without seeing this error, and I run many different operating systems in VMs including QNX, Solaris, Linux, BSD, FreeDOS, and Windows.

    Also, is your host 32-bit, or 64-bit? And have you enabled the virtualization extensions in the BIOS (if available)? And what is the guest OS?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  5. #5
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    I beleave i may have fixed it. I rememberd earlyer i had installed an expansion pack, so i hunted it down and removed it and now its working fine. Not sure why the expansion pack didnt work, but it didnt. Maybe wrong version?

  6. #6
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    In my case I used the VirtualBox 4.2.16 and, installed the VirtualBox's pack Extension 4.2.18.

    <<Submitted Error:
    The device helper structure version has changed.
    If you have upgraded VirtualBox recently, 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).
    >>

    <<Solution:
    Uninstalled the VirtualBox's pack Extension 4.2.18 and installed version 4.2.16, it worked!
    >>

    <<This solution was obtained the community below:
    askubuntu.com
    >>

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