How do I fix this error?

Development Getting Started & Setup
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1

Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\CUDA\Source\Private\CudaModule.cpp] [Line: 326] You have requested a CUDA context when the RHI selected device does not have a CUDA context, did initialisation fail?

I open other projects and rendered. They rendered fine with no issues. Just this project seems Fatal.

2

CUDA means nvidia. So check in project settings, if failing one uses any of this:

  • Real-Time Ray Tracing
  • NVIDIA DLSS
  • NVIDIA HairWorks, TurfEffects, WaveWorks
  • GPU Lightmass

And you do not have Nvidia cars (so no CUDA). Or turn off one by one in failing project and see if it works.

But this: “You have requested a CUDA context when the RHI selected device does not have a CUDA context”

Means that you did not install drivers with CUDA or you do not have NVIDIAa card that supports it.

3

Thank you, I will take a closer look with this info