opencv build_error ai_generated true

CMake Error: CUDA_TOOLKIT_ROOT_DIR not found

ID: opencv/build-with-cuda-failed

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78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
4 active — — —

Root Cause

CUDA toolkit not installed or not found during OpenCV build.

generic

Workarounds

  1. 88% success Install CUDA toolkit matching GPU driver version
  2. 85% success Set CUDA_TOOLKIT_ROOT_DIR explicitly in cmake

Dead Ends

Common approaches that don't work:

  1. Set WITH_CUDA=OFF to skip 68% fail

    Loses GPU acceleration

  2. Install latest CUDA regardless of GPU 80% fail

    Driver/toolkit mismatch