diff --git a/sdk/python/kfp/components/_dsl_bridge.py b/sdk/python/kfp/components/_dsl_bridge.py
index 356ac823903..182b758e970 100644
--- a/sdk/python/kfp/components/_dsl_bridge.py
+++ b/sdk/python/kfp/components/_dsl_bridge.py
@@ -21,6 +21,9 @@ def create_container_op_from_task(task_spec: TaskSpec):
     argument_values = task_spec.arguments
     component_spec = task_spec.component_ref._component_spec
 
+    if hasattr(component_spec.implementation, 'graph'):
+        raise TypeError('Cannot convert graph component to ContainerOp')
+
     inputs_dict = {input_spec.name: input_spec for input_spec in component_spec.inputs or []}
     container_spec = component_spec.implementation.container