I am learning UE4 programming follow the tutorial to here
link text
But UE4 crashed while I try to edit a floor.
Fatal error: [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Util.cpp] [Line: 181]
Unreal Engine is exiting due to D3D device being lost. (Error: 0x887A0007 - ‘RESET’)
I refer to other threads ,but no help,hope someone can help me