diff --git a/src/spring/HISTORY.md b/src/spring/HISTORY.md
index 78cc0c3189c..0280d94d553 100644
--- a/src/spring/HISTORY.md
+++ b/src/spring/HISTORY.md
@@ -1,5 +1,9 @@
 Release History
 ===============
+1.28.4
+---
+* Fix regression issue caused by the SDK change.
+
 1.28.3
 ---
 * Update Azure Spring Apps reference doc.
diff --git a/src/spring/azext_spring/_utils.py b/src/spring/azext_spring/_utils.py
index 5e5e1d055f8..357828b2efa 100644
--- a/src/spring/azext_spring/_utils.py
+++ b/src/spring/azext_spring/_utils.py
@@ -4,6 +4,7 @@
 # --------------------------------------------------------------------------------------------
 import json
 import re
+import xml.etree.ElementTree as ET
 from datetime import datetime
 from enum import Enum
 import os
@@ -334,10 +335,32 @@ def handle_asc_exception(ex):
     try:
         raise CLIError(ex.inner_exception.error.message)
     except AttributeError:
+        logger.debug(f"CLIError ex: {ex}")
+        logger.debug(f"CLIError ex.response.internal_response.text: {ex.response.internal_response.text}")
         if hasattr(ex, 'response') and ex.response.internal_response.text:
-            response_dict = json.loads(ex.response.internal_response.text)
-            raise CLIError(response_dict["error"]["message"])
+            logger.debug("CLIError: Trying to parse the exception message.")
+            try:
+                response_dict = json.loads(ex.response.internal_response.text)
+                logger.debug(f"CLIError response_dict: {response_dict}")
+                raise CLIError(response_dict["error"]["message"])
+            except json.JSONDecodeError:
+                # Try to extract error from XML format
+                try:
+                    root = ET.fromstring(ex.response.internal_response.text)
+                    # Look for common error message patterns in XML
+                    error_msg = root.find('.//Message')
+                    if error_msg is not None and error_msg.text:
+                        raise CLIError(error_msg.text)
+                    # If no Message element, try to find any text content
+                    error_text = ''.join(root.itertext()).strip()
+                    if error_text:
+                        raise CLIError(error_text)
+                except ET.ParseError:
+                    pass
+                # If both JSON and XML parsing fail, return the raw text
+                raise CLIError(ex.response.internal_response.text)
         else:
+            logger.debug("CLIError: Unable to parse the exception message.")
             raise CLIError(ex)
 
 
diff --git a/src/spring/setup.py b/src/spring/setup.py
index 8133b8ba53c..63ba942acd0 100644
--- a/src/spring/setup.py
+++ b/src/spring/setup.py
@@ -16,7 +16,7 @@
 
 # TODO: Confirm this is the right version number you want and it matches your
 # HISTORY.rst entry.
-VERSION = '1.28.3'
+VERSION = '1.28.4'
 
 # The full list of classifiers is available at
 # https://pypi.python.org/pypi?%3Aaction=list_classifiers