[BugFix]: properly catch templating error when preprocess input (#13976)

Signed-off-by: Guillaume Calmettes <gcalmettes@scaleway.com>

vllm/entrypoints/openai/serving_pooling.py

@@ -6,6 +6,7 @@ import time
 from collections.abc import AsyncGenerator
 from typing import Final, Literal, Optional, Union, cast
 
+import jinja2
 import numpy as np
 from fastapi import Request
 from typing_extensions import assert_never
@@ -138,6 +139,12 @@ class OpenAIServingPooling(OpenAIServing):
         except ValueError as e:
             logger.exception("Error in preprocessing prompt inputs")
             return self.create_error_response(str(e))
+        except TypeError as e:
+            logger.exception("Error in preprocessing prompt inputs")
+            return self.create_error_response(str(e))
+        except jinja2.TemplateError as e:
+            logger.exception("Error in preprocessing prompt inputs")
+            return self.create_error_response(str(e))
 
         # Schedule the request and get the result generator.
         generators: list[AsyncGenerator[PoolingRequestOutput, None]] = []