TypeError: Couldn't build proto file into descriptor pool!

[XiaohanYa]

Hi,

I'm using CoreNLP Client from stanza to annotate my text, and I want to save my results. I used the following code to save my results. I think it works well but I encountered errors when reading in the result file.

with open(dir_path+'reproduced/corenlp/results.pb2', 'wb') as f:
    f.write(annotated_doc.SerializeToString())

When reading the file, I tried the following code. The corenlp-protobuf I installed is version 3.8.0.

from corenlp_protobuf import Document, parseFromDelimitedString

def readCoreNLPProtoFile(protoFile):
  with open('protoFile', 'rb') as f:
      buf = f.read()
  doc = Document()
  parseFromDelimitedString(doc, buf)
  return doc

However, I got the TypeError as follows. Could someone help me? Thanks in advance.

[AngledLuffa]

Are you using two separate libraries which both happen to use a protobuf to communicate with corenlp? Maybe there's a conflict, especially since the protobuf definitions aren't synced.

I would recommend entirely using stanza instead, since stanza is actively being developed and has some better support in general for corenlp.

On Tue, Nov 9, 2021 at 7:04 PM Xiaohan Yang @.***> wrote:

Hi,

I'm using CoreNLP Client from stanza to annotate my text, and I want to save my results. I used the following code to save my results. I think it works well but I encountered errors when reading in the result file.

with open(dir_path+'reproduced/corenlp/results.pb2', 'wb') as f: f.write(annotated_doc.SerializeToString())

When reading the file, I tried the following code. The corenlp-protobuf I installed is version 3.8.0.

from corenlp_protobuf import Document, parseFromDelimitedString

def readCoreNLPProtoFile(protoFile): with open('protoFile', 'rb') as f: buf = f.read() doc = Document() parseFromDelimitedString(doc, buf) return doc

However, I got the TypeError as follows. Could someone help me? Thanks in advance.

[image: Screen Shot 2021-11-09 at 10 01 08 PM] https://user-images.githubusercontent.com/26055429/141042076-16839cc2-30ea-42f5-9169-29f8271e054a.png

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