aaa

Author: john0312

src/mcp/cli/cli.py

@@ -156,7 +156,7 @@ def _check_server_object(server_object: Any, object_name: str):
         if not isinstance(server_object, FastMCP):
             logger.error(
                 f"The server object {object_name} is of type "
-                f"{type(server_object)} (expecting <class 'FastMCP'>)."
+                f"{type(server_object)} (expecting {FastMCP})."
             )
             if isinstance(server_object, LowLevelServer):
                 logger.warn(
@@ -206,16 +206,16 @@ def _check_server_object(server_object: Any, object_name: str):
         # Just object name
         server = getattr(module, server_object, None)
 
-    if not _check_server_object(server, server_object):
-        server = None
-
     if server is None:
         logger.error(
             f"Server object '{server_object}' not found",
             extra={"file": str(file)},
         )
         sys.exit(1)
 
+    if not _check_server_object(server, server_object):
+        sys.exit(1)
+
     return server