diff --git a/power-supply/power_supply.cpp b/power-supply/power_supply.cpp
index f463595..f1c0f81 100644
--- a/power-supply/power_supply.cpp
+++ b/power-supply/power_supply.cpp
@@ -537,6 +537,13 @@
     return;
 }
 
+void PowerSupply::resolveError(const std::string& callout,
+                               const std::string& message)
+{
+    // to be filled in.
+    return;
+}
+
 }
 }
 }