AttributeError: 'ConfigDict' object has no attribute 'nms'AttributeError: 'ConfigDict' object has no attribute 'nms'

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Traceback (most recent call last): File "", line 1, in File "E:\users\PyCharm 2021.2\plugins\python\helpers\pydev_pydev_bundle\pydev_umd.py", line 198, in runfile pydev_imports.execfile(filename, global_vars, local_vars) # execute the script File "E:\users\PyCharm 2021.2\plugins\python\helpers\pydev_pydev_imps_pydev_execfile.py", line 18, in execfile exec(compile(contents+"\n", file, 'exec'), glob, loc) File "E:/python/adversarial object detection/GPAttack/attack.py", line 337, in success_attack = specific_attack(model_helpers, img_path, mask, save_image_dir) File "E:/python/adversarial object detection/GPAttack/attack.py", line 268, in specific_attack res = loop.run_until_complete(asyncio.gather(*tasks)) File "E:\users\anaconda3\envs\mmdt\lib\asyncio\base_events.py", line 587, in run_until_complete return future.result() File "E:/python/adversarial object detection/GPAttack/attack.py", line 228, in get_attack_loss al, on = await helper.attack_loss(img) File "E:\python\adversarial object detection\GPAttack\faster_helper.py", line 140, in attack_loss scores = self.get_detector_cls_sorces(img, self.img_metas) File "E:\python\adversarial object detection\GPAttack\faster_helper.py", line 125, in get_detector_cls_sorces proposal_list = self.model.rpn_head.simple_test_rpn(x, img_metas) File "E:\users\anaconda3\envs\mmdt\lib\site-packages\mmdet\models\dense_heads\dense_test_mixins.py", line 124, in simple_test_rpn proposal_list = self.get_bboxes(*rpn_outs, img_metas) File "E:\users\anaconda3\envs\mmdt\lib\site-packages\mmcv\runner\fp16_utils.py", line 186, in new_func return old_func(*args, **kwargs) File "E:\users\anaconda3\envs\mmdt\lib\site-packages\mmdet\models\dense_heads\rpn_head.py", line 130, in get_bboxes scale_factor, cfg, rescale) File "E:\users\anaconda3\envs\mmdt\lib\site-packages\mmdet\models\dense_heads\rpn_head.py", line 220, in _get_bboxes_single dets, keep = batched_nms(proposals, scores, ids, cfg.nms) File "E:\users\anaconda3\envs\mmdt\lib\site-packages\mmcv\utils\config.py", line 48, in getattr raise ex AttributeError: 'ConfigDict' object has no attribute 'nms'