The virtual machine has terminated

VirtualBox Version: 4.3.20
Host: Win7 64 bit
Guest: OracleLinux 64 bit
Failed to open a session for the virtual machine DEVM.
The virtual machine \'DEVM\' has terminated unexpectedly during startup with exit code 1 (0x1).  More details may be available in \'E:\\VM\\DEVM\\Logs\\VBoxStartup.log\'.
Result Code: E_FAIL (0x80004005)
Component: Machine
Interface: IMachine {480cf695-2d8d-4256-9c8c-cce0000fa123}
I have overcome the issue.
Thanks Again for all your comments.
感谢!
oracle 官网原帖地址
https://community.oracle.com/thread/3639877