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diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/exceptions.py b/azure/aria/aria-extension-cloudify/src/aria/aria/exceptions.py
new file mode 100644
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+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/exceptions.py
@@ -0,0 +1,73 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Base exception classes and other common exceptions used throughout ARIA.
+"""
+
+import sys
+
+
+class AriaError(Exception):
+    """
+    Base class for ARIA errors.
+    """
+    pass
+
+
+class AriaException(Exception):
+    """
+    Base class for ARIA exceptions.
+    """
+
+    def __init__(self, message=None, cause=None, cause_traceback=None):
+        super(AriaException, self).__init__(message)
+        self.cause = cause
+        self.issue = None
+        if cause_traceback is None:
+            _, e, traceback = sys.exc_info()
+            if cause == e:
+                # Make sure it's our traceback
+                cause_traceback = traceback
+        self.cause_traceback = cause_traceback
+
+
+class DependentServicesError(AriaError):
+    """
+    Raised when attempting to delete a service template which has existing services.
+    """
+    pass
+
+
+class DependentActiveExecutionsError(AriaError):
+    """
+    Raised when attempting to delete a service which has active executions.
+    """
+    pass
+
+
+class DependentAvailableNodesError(AriaError):
+    """
+    Raised when attempting to delete a service which has available nodes.
+    """
+    pass
+
+
+class ParsingError(AriaError):
+    pass
+
+
+class InstantiationError(AriaError):
+    pass