Index: src/libchengine/FeedbackAlreadyExistsRule.cpp
===================================================================
diff -u -N -rf8b6de9c28b2957db0b4e71efa11df8632e41261 -r22c7d5559ca17c9b1859d2283b667516b23ac597
--- src/libchengine/FeedbackAlreadyExistsRule.cpp	(.../FeedbackAlreadyExistsRule.cpp)	(revision f8b6de9c28b2957db0b4e71efa11df8632e41261)
+++ src/libchengine/FeedbackAlreadyExistsRule.cpp	(.../FeedbackAlreadyExistsRule.cpp)	(revision 22c7d5559ca17c9b1859d2283b667516b23ac597)
@@ -5,6 +5,7 @@
 
 using namespace serializer;
 using namespace string;
+using namespace chcore;
 
 namespace chengine
 {