Lavanya wrote:Thanks a lot. when ever I encounter such situation, I use to create a new VM and again install all the softwares for my project.
Well, that is almost never necessary, even if the fix above didn't work.
If you still have the disk part of the VM (i.e. the VDI) then it's always possible to create a new VM around it. Create the VM as normal and then when you get to the disk creation step, choose "use existing". One tip: move the VDI into the newly created VM folder before selecting it in the new VM. That ensures that all VM files are in one neat folder, which is what forum users will tend to assume when answering your questions.
And I might add that a good regular backup of the VM folder is the best guarantee.