Message in Russian (Русский)
Атрибут "<var>X</var>" в пространстве имен "http://schemas.microsoft.com/winfx/2006/xaml" допустим только при использовании со свойством IDictionary.
Unlocalized message
'<var>X</var>' attribute in 'http://schemas.microsoft.com/winfx/2006/xaml' namespace is valid only when used with an IDictionary property.
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