Error in parsing TFLite TTS Model (in TransposeConv)

Trying to load this model into relay:

https://tfhub.dev/monatis/lite-model/german-mbmelgan/lite/1

tflite_model_buf = open(MODEL_PATH_TTS, "rb").read()
tflite_model = tflite.Model.GetRootAsModel(tflite_model_buf, 0)
model, params = relay.frontend.from_tflite(tflite_model)

Throws an exception while parsing the transpose conv layer:

  File "/Users/escottal/Library/Application Support/JetBrains/CLion2021.3/scratches/scratch_tf_quant.py", line 28, in <module>
    model, params = relay.frontend.from_tflite(tflite_model)
  File "/code/tvm/python/tvm/relay/frontend/tflite.py", line 3758, in from_tflite
    op_converter.convert_op_to_relay()
  File "/code/tvm/python/tvm/relay/frontend/tflite.py", line 234, in convert_op_to_relay
    ret = self.convert_map[op_code_str](op)
  File "/code/tvm/python/tvm/relay/frontend/tflite.py", line 2917, in convert_transpose_conv
    output_shape_value = self.get_tensor_value(output_shape_tensor)
  File "/code/tvm/python/tvm/relay/frontend/tflite.py", line 421, in get_tensor_value
    return np.frombuffer(data, dtype=dtype).reshape(shape)
TypeError: a bytes-like object is required, not 'int'

It should be an ndarray (as is with other layers), but the flatbuffer value that gets read is 0.

Any ideas?

Presumably this works fine with tflite runtime , could you file an issue on GitHub ?

Ramana