[NGRAPH] Fix UNITY build under Windows (#2678)

diff --git a/ngraph/frontend/onnx_import/include/onnx_import/core/attribute.hpp b/ngraph/frontend/onnx_import/include/onnx_import/core/attribute.hpp
index d9151cf..632a829 100644 (file)
--- a/ngraph/frontend/onnx_import/include/onnx_import/core/attribute.hpp
+++ b/ngraph/frontend/onnx_import/include/onnx_import/core/attribute.hpp
@@ -88,7 +88,7 @@ namespace ngraph
                 template <typename T>
                 inline T get_value(const ONNX_NAMESPACE::AttributeProto& attribute)
                 {
-                    throw error::attribute::UnsupportedType{attribute.type()};
+                    throw ngraph::onnx_import::error::attribute::UnsupportedType{attribute.type()};
                 }
 
                 template <>