Fix protobuf compatibility issues

app.py

@@ -3,6 +3,9 @@ from transformers import BertTokenizer, TFBertForSequenceClassification
 import tensorflow as tf
 import numpy as np
 
+import os
+os.environ["PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION"] = "python"
+
 # Paths to your models hosted on Hugging Face
 basic_model_url = "https://huggingface.co/anshupatel4298/bert-chatbot-model/resolve/main/basic_chatbot_model.h5"
 bert_model_name = "anshupatel4298/bert-chatbot-model/bert_model"

requirements.txt

@@ -1,4 +1,4 @@
 tensorflow==2.9.0
 transformers==4.19.2
-protobuf<3.20
+protobuf==3.20.1
 streamlit