diff --git a/Sources/OpenAttributeGraphCxx/Graph/OAGGraphTracing.cpp b/Sources/OpenAttributeGraphCxx/Graph/OAGGraphTracing.cpp
index dedaa8df..69f030ba 100644
--- a/Sources/OpenAttributeGraphCxx/Graph/OAGGraphTracing.cpp
+++ b/Sources/OpenAttributeGraphCxx/Graph/OAGGraphTracing.cpp
@@ -3,6 +3,13 @@
 //  OpenAttributeGraphCxx
 
 #include <OpenAttributeGraph/OAGGraphTracing.h>
+#include <OpenAttributeGraphCxx/Graph/Graph.hpp>
+
+namespace OAG {
+void Graph::trace_assertion_failure(bool remove, const char *format, ...) OAG_NOEXCEPT {
+    // TODO
+}
+} /* OAG */
 
 void OAGGraphStartTracing(_Nullable OAGGraphRef graph, OAGGraphTraceOptions options) {
     OAGGraphStartTracing2(graph, options, NULL);
diff --git a/Sources/OpenAttributeGraphCxx/Misc/assert.cpp b/Sources/OpenAttributeGraphCxx/Misc/assert.cpp
index 08523dee..5c4450cf 100644
--- a/Sources/OpenAttributeGraphCxx/Misc/assert.cpp
+++ b/Sources/OpenAttributeGraphCxx/Misc/assert.cpp
@@ -4,11 +4,12 @@
 
 #include <OpenAttributeGraphCxx/Misc/assert.hpp>
 #include <OpenAttributeGraphCxx/Misc/log.hpp>
+#include <OpenAttributeGraphCxx/Graph/Graph.hpp>
 
 #include <stdio.h>
 #include <stdlib.h>
 
-char* error_message = nullptr;
+static char* error_message = nullptr;
 
 namespace OAG {
 void precondition_failure(const char *format, ...) {
@@ -19,9 +20,7 @@ void precondition_failure(const char *format, ...) {
     va_end(va);
     if (s != nullptr) {
         platform_log_error(error_log(), "precondition failure: %s", s);
-        #if OAG_TARGET_RELEASE >= OAG_RELEASE_2023
-        // OAG::Graph::trace_assertion_failure(true, "precondition failure: %s", s)
-        #endif
+        Graph::trace_assertion_failure(true, "precondition failure: %s", s);
         if (error_message == nullptr) {
             asprintf(&error_message, "OpenAttributeGraph precondition failure: %s.\n", s);
         }
@@ -38,8 +37,8 @@ void non_fatal_precondition_failure(const char *format, ...) {
     va_end(va);
     if (s != nullptr) {
         platform_log_fault(error_log(), "precondition failure: %s", s);
+        Graph::trace_assertion_failure(false, "precondition failure: %s", s);
         free(s);
     }
-    return;
 }
 } /* OAG */
diff --git a/Sources/OpenAttributeGraphCxx/include/OpenAttributeGraphCxx/Graph/Graph.hpp b/Sources/OpenAttributeGraphCxx/include/OpenAttributeGraphCxx/Graph/Graph.hpp
index 37dbc0d8..10c8c45a 100644
--- a/Sources/OpenAttributeGraphCxx/include/OpenAttributeGraphCxx/Graph/Graph.hpp
+++ b/Sources/OpenAttributeGraphCxx/include/OpenAttributeGraphCxx/Graph/Graph.hpp
@@ -116,6 +116,8 @@ class Graph final {
     
     const void value_mark_all() const OAG_NOEXCEPT;
     
+    static void trace_assertion_failure(bool, const char *, ...) OAG_NOEXCEPT;
+
     static void all_start_profiling(uint32_t) OAG_NOEXCEPT;
     static void all_stop_profiling() OAG_NOEXCEPT;
     void start_profiling(uint32_t) OAG_NOEXCEPT;