Permission denied: './ckpt/checkpoint'

[jeevottamlokurti]

Traceback (most recent call last):
File "./flow", line 6, in
cliHandler(sys.argv)
File "C:\SDCPD\Traffic_sign_detection_YOLO-master\Traffic_sign_detection_YOLO-master\darkflow\darkflow\cli.py", line 26, in cliHandler
tfnet = TFNet(FLAGS)
File "C:\SDCPD\Traffic_sign_detection_YOLO-master\Traffic_sign_detection_YOLO-master\darkflow\darkflow\net\build.py", line 76, in init
self.setup_meta_ops()
File "C:\SDCPD\Traffic_sign_detection_YOLO-master\Traffic_sign_detection_YOLO-master\darkflow\darkflow\net\build.py", line 151, in setup_meta_ops
if self.FLAGS.load != 0: self.load_from_ckpt()
File "C:\SDCPD\Traffic_sign_detection_YOLO-master\Traffic_sign_detection_YOLO-master\darkflow\darkflow\net\help.py", line 23, in load_from_ckpt
with open(os.path.join(self.FLAGS.backup, 'checkpoint'), 'r') as f:
PermissionError: [Errno 13] Permission denied: './ckpt/checkpoint'

even tried running cmd promt as administrator