move data declaration after test if elements are in current scope.

code/FBXMeshGeometry.cpp

@@ -454,13 +454,12 @@ void ResolveVertexDataArray(std::vector<T>& data_out, const Scope& source,
 		ParseVectorDataArray(tempData, GetRequiredElement(source, dataElementName));
 
         data_out.resize(vertex_count);
-
-        std::vector<int> uvIndices;
         if ( !HasElement( source, indexDataElementName ) ) {
             return;
         }
-        ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
 
+        std::vector<int> uvIndices;
+        ParseVectorDataArray(uvIndices,GetRequiredElement(source,indexDataElementName));
         for (size_t i = 0, e = uvIndices.size(); i < e; ++i) {
 
             const unsigned int istart = mapping_offsets[i], iend = istart + mapping_counts[i];