I have this error in demo/demo.py :
(detectron2) C:\detectron2-main>python demo/demo.py --config-file configs/COCO-InstanceSegmentation/mask_rcnn_X_101_32x8d_FPN_3x.yaml --input “datasets/trainval/image (13).jpg” --output output.jpg --confidence-threshold 0.8
[09/21 11:28:20 detectron2]: Arguments: Namespace(confidence_threshold=0.8, config_file=‘configs/COCO-InstanceSegmentation/mask_rcnn_X_101_32x8d_FPN_3x.yaml’, input=[‘datasets/trainval/image (13).jpg’], opts=[], output=‘output.jpg’, video_input=None, webcam=False)
Traceback (most recent call last):
File “demo/demo.py”, line 117, in 
demo = VisualizationDemo(cfg)
File “C:\detectron2-main\demo\predictor.py”, line 35, in init
self.predictor = DefaultPredictor(cfg)
File “c:\detectron2-main\detectron2\engine\defaults.py”, line 281, in init
self.model = build_model(self.cfg)
File “c:\detectron2-main\detectron2\modeling\meta_arch\build.py”, line 23, in build_model
model.to(torch.device(cfg.MODEL.DEVICE))
File “C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\nn\modules\module.py”, line 673, in to
return self._apply(convert)
File “C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\nn\modules\module.py”, line 387, in _apply
module._apply(fn)
File “C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\nn\modules\module.py”, line 387, in _apply
module._apply(fn)
File “C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\nn\modules\module.py”, line 409, in apply
param_applied = fn(param)
File “C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\nn\modules\module.py”, line 671, in convert
return t.to(device, dtype if t.is_floating_point() or t.is_complex() else None, non_blocking)
File "C:\Users\Sylvain ARD.conda\envs\detectron2\lib\site-packages\torch\cuda_init.py", line 170, in _lazy_init
torch._C._cuda_init()
RuntimeError: CUDA driver initialization failed, you might not have a CUDA gpu.
(detectron2) C:\detectron2-main>pause
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