VirtualBox vbox not found

VirtualBox vbox file not found

Problem

When I opened virtualbox, Today, it showed "inaccessible" and throws this error:

Runtime error opening 'C:\Users\mypc\VirtualBox VMs\CentOS 32bit 6.4/CentOS 32bit 6.4.vbox' for reading: -102 (File not found.).

*********~~~~~~\MachineImpl.cpp[685] (Machine::registeredInit).

Result Code:
E_FAIL (0x80004005)
Component:
VirtualBox
Interface:
IVirtualBox {c28be65f-1a8f-43b4-81f1-eb60cb516e66}

Method:

Now, if you look in the VM folder (where the .vbox file is supposed to be) you will probably see a .vbox-tmp or .vbox-new file instead. If either of these exists, then rename the extension to .vbox. If and only if neither of those files exists, there should be a .vbox-prev file in the same folder which you can again change to .vbox.

My Solution:

change the extension .vbox-prev to .vbox, and i make it.

REFERENCE

Runtime error opening. -102 (File not found)
Oracle virtual box inaccessible