1 files changed, 6 insertions, 0 deletions
diff --git a/src/ui/mapper/style/StyleRuleMapper.cpp b/src/ui/mapper/style/StyleRuleMapper.cpp
index 1ca45a6e..2ab13c90 100644
--- a/src/ui/mapper/style/StyleRuleMapper.cpp
+++ b/src/ui/mapper/style/StyleRuleMapper.cpp
@@ -1,5 +1,7 @@
 #include "cru/ui/mapper/style/StyleRuleMapper.h"
 #include "cru/common/ClonablePtr.h"
+#include "cru/common/Exception.h"
+#include "cru/common/log/Logger.h"
 #include "cru/ui/mapper/MapperRegistry.h"
 #include "cru/ui/mapper/style/IConditionMapper.h"
 #include "cru/ui/mapper/style/IStylerMapper.h"
@@ -45,6 +47,10 @@ ClonablePtr<ui::style::StyleRule> StyleRuleMapper::DoMapFromXml(
           }
         }
       }
+
+      if (!resolved) {
+        throw Exception(u"Unknown element in StyleRule: " + c->GetTag());
+      }
     }
   }