```
File "from_tensorflow.py", line 100, in <module>
graph_def.ParseFromString(f.read())
google.protobuf.message.DecodeError: Error parsing message
```

happened when I run from_tensorflow.py in **Compile Tensorflow Models** tutorial.
my enviroment:
tensorflow: version 2.0.0

python: 3.6

OS:Ubuntu18.04

TVM 0.7

source code:

```
with tf_compat_v1.gfile.GFile(model_path, "rb") as f:
graph_def = tf_compat_v1.GraphDef()
graph_def.ParseFromString(f.read())
graph = tf.import_graph_def(graph_def, name="")
# Call the utility to import the graph definition into default graph.
graph_def = tf_testing.ProcessGraphDefParam(graph_def)
# Add shapes to the graph.
with tf_compat_v1.Session() as sess:
graph_def = tf_testing.AddShapesToGraphDef(sess, "softmax")
```

how to solve it?