Update app.py

app.py

@@ -51,8 +51,7 @@ eos_token_id=processor.tokenizer.eos_token_id
 def stream_chat(message, history: list, temperature: float, max_new_tokens: int):
     print(f'message is - {message}')
     print(f'history is - {history}')
-    conversation = []
-   
+    conversation = [] 
     if message["files"]:
         image = Image.open(message["files"][-1])
         conversation.append({"role": "user", "content": f"<|image_1|>\n{message['text']}"})
@@ -62,6 +61,7 @@ def stream_chat(message, history: list, temperature: float, max_new_tokens: int)
             image = None
         elif len(history):
             image = Image.open(history[0][0][0])
+            conversation.extend([{"role": "user", "content":""}])
             for prompt, answer in history:
                 conversation[0]['content'] = f"<|image_1|>\n{prompt}"
                 conversation.extend([{"role": "assistant", "content": answer}])