TopK error from onnx model misses "k" attribute

[Chen__Boyuan]

File "/opt/intel/openvino_2019.3.376/deployment_tools/model_optimizer/extensions/front/TopKNormalize.py", line 38, in find_and_replace_pattern
    assert topk_node.has_valid('k'), 'The TopK node "{}" misses "k" attribute'.format(topk_node.name)
AssertionError: The TopK node "TopK_101" misses "k" attribute

Some debug gives me:

1. 'k' is not in self.graph.node["TopK_101"].keys()

2. However, 'k' is present in the attribute of self.graph.node["TopK_101"].['pb']

input: "253"
output: "254"
output: "255"
name: "TopK_101"
op_type: "TopK"
attribute {
  name: "axis"
  i: 3
  type: INT
}
attribute {
  name: "k"
  i: 100
  type: INT
}

[SIRIGIRI_V_Intel]

Can you please answer the below questions:

1. What is the topology of the model
2. Is the model a public model or custom model
3. What is the model optimizer command you have used to convert the model

We recommend to use the latest version of OpenVINO(2020.2). Could you please give a try and let us know the results.

Regards,

Ram prasad