google.protobuf.text_format.ParseError: 87:6 : Message type "object_detection.protos.Hyperparams" has no field named "s".

[shreyasharma98]

Machine : Win10 64-bit
python : Anaconda3 , python 3.6
tensorflow : 1.14
model configuration : ssd_mobilenet_v1_coco.config
pre-trained model used : ssd_mobilenet_v1

in model/research
python object_detection/legacy/train.py --logtostderr --train_dir=object_detection/training/ --pipeline_config_path=object_detection/ssd_mobilenet_v1_coco.config

error : google.protobuf.text_format.ParseError: 87:6 : Message type "object_detection.protos.Hyperparams" has no field named "s".
Any help please!!