Fix Langchain Prompts Import

app.py

@@ -6,8 +6,8 @@ from transformers import AutoTokenizer, AutoModelForSeq2SeqLM, pipeline
 from langchain_huggingface import HuggingFacePipeline
 #from langchain.prompts import PromptTemplate
 from langchain_core.prompts import PromptTemplate
-
-from langchain.schema import StrOutputParser
+#from langchain.schema import StrOutputParser
+from langchain_core.output_parsers import StrOutputParser
 
 # LlamaIndex (modular imports)
 from llama_index.core import SimpleDirectoryReader, VectorStoreIndex, Settings