Hello, I want to know if you finally solved this problem? I encountered
exactly the same issue recently while training a model with TensorFlow 1.15.
On Sunday, April 24, 2022 at 1:49:41 AM UTC+8 zjk wrote:
> Hi, I am not a direct user of protobuf, I was training my model with
> tensorflow using Python, while attempting to save my checkpoint model, this
> error related to protobuf occurred:
>
> [libprotobuf ERROR google/protobuf/wire_format_lite.cc:577] String field '
> tensorflow.TensorShapeProto.Dim.name' contains invalid UTF-8 data when
> parsing a protocol buffer. Use the 'bytes' type if you intend to send raw
> bytes.
> Traceback (most recent call last):
> File "train.py", line 77, in <module>
> train(model)
> File "train.py", line 24, in train
> model.optimize()
> File "/user-data/HyperBox-main/script/model/box_model.py", line 329, in
> optimize
> self.save_model(itr)
> File "/user-data/HyperBox-main/script/model/box_model.py", line 140, in
> save_model
> self.saver.save(self.sess, filename)
> File
> "/opt/conda/lib/python3.8/site-packages/tensorflow/python/training/saver.py",
> line 1208, in save
> self.export_meta_graph(
> File
> "/opt/conda/lib/python3.8/site-packages/tensorflow/python/training/saver.py",
> line 1254, in export_meta_graph
> graph_def=ops.get_default_graph().as_graph_def(add_shapes=True),
> File
> "/opt/conda/lib/python3.8/site-packages/tensorflow/python/framework/ops.py",
> line 3345, in as_graph_def
> result, _ = self._as_graph_def(from_version, add_shapes)
> File
> "/opt/conda/lib/python3.8/site-packages/tensorflow/python/framework/ops.py",
> line 3262, in _as_graph_def
> graph.ParseFromString(compat.as_bytes(data))
> google.protobuf.message.DecodeError: Error parsing message
>
> from the information above, we can see that:
> 1) some so-called 'invalid UTF-8 data' was sent to protobuf;
> 2) Use the 'bytes' type if you intend to send raw bytes.
>
> the function at the second to last line compat.as_bytes(data) is defined
> as:
> def as_bytes(bytes_or_text, encoding='utf-8'):
> if isinstance(bytes_or_text, bytearray):
> return bytes(bytes_or_text)
> elif isinstance(bytes_or_text, _six.text_type):
> ##_six.text_type = unicode
> return bytes_or_text.encode(encoding)
> elif isinstance(bytes_or_text, bytes):
> return bytes_or_text
> else:
> raise TypeError('Expected binary or unicode string, got %r' %
> (bytes_or_text,))
>
> we can see that this function makes sure that what will be passed into
> graph.ParseFromString(which later passed to protobuf) is definitely utf-8
> data or bytes, however, the protobuf keeps claiming the data passed to it
> is not valid utf-8 data. Taking one step back, even if the data was not
> valid utf-8, it is definitely bytes, which it should take in normally.
>
> And I printed some information before the execution of
> graph.ParseFromString(compat.as_bytes(data)):
>
> pprint(type(data))
> graph.ParseFromString(compat.as_bytes(data))
>
> and here's the result:
> <class 'bytes'>
> the data has already been bytes even before it is passed into
> compat.as_bytes!
>
> I am sorry for sounding emotional, it's just that I've been stuck with
> this problem for too long and it really gets me frustrated.
>
>
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