MISC: add logger error when object not found

_unittest/test_14_AedtLogger.py

@@ -219,6 +219,21 @@ def test_05_disable_stdout(self):
         assert stream_content[2] == "PyAEDT INFO: Info after re-enabling the stdout handler.\n"
 
 
+class TestLogMessages:
+    """Class used to test log messages."""
+
+    def test_log_when_accessing_non_existing_object(self, caplog):
+        """Check that accessing non existing object log an error message."""
+        from pyaedt import Hfss
+
+        app = Hfss(
+            projectname="log_project", designname="log_design", specified_version="2023.2", new_desktop_session=True
+        )
+        with pytest.raises(AttributeError):
+            app.get_object_material_properties("MS1", "conductivity")
+        assert ("Global", logging.ERROR, "Object 'MS1' not found.") in caplog.record_tuples
+
+
 class CaptureStdOut:
     """Capture standard output with a context manager."""
 

pyaedt/modeler/cad/Primitives.py

@@ -92,6 +92,7 @@ def __getitem__(self, partId):
             return self.user_defined_components[partId]
         elif isinstance(partId, Object3d) or isinstance(partId, UserDefinedComponent):
             return partId
+        self.logger.error("Object '{}' not found.".format(partId))
         return None
 
     def __init__(self, app, is3d=True):