Add warning message when NoEligibleSpeaker

Author: thinkall

autogen/agentchat/groupchat.py

@@ -1185,6 +1185,7 @@ def run_chat(
                     raise
             except NoEligibleSpeaker:
                 # No eligible speaker, terminate the conversation
+                logger.warning("No eligible speaker found. Terminating the conversation.")
                 break
 
             if reply is None:
@@ -1266,6 +1267,7 @@ async def a_run_chat(
                     raise
             except NoEligibleSpeaker:
                 # No eligible speaker, terminate the conversation
+                logger.warning("No eligible speaker found. Terminating the conversation.")
                 break
 
             if reply is None: