diff -r 8ae93a43fed2 -r a64afb2d24c9 nbproject/configurations.xml
--- a/nbproject/configurations.xml	Mon Sep 03 23:41:29 2018 +0200
+++ b/nbproject/configurations.xml	Sun Sep 09 23:20:57 2018 +0200
@@ -4,6 +4,7 @@
     <logicalFolder name="HeaderFiles"
                    displayName="Header Files"
                    projectFiles="true">
+      <itemPath>include/relpipe/writer/AttributeMetadata.h</itemPath>
       <itemPath>src/types/BooleanDataTypeWriter.h</itemPath>
       <itemPath>src/DataTypeWriter.h</itemPath>
       <itemPath>src/DataTypeWriterBase.h</itemPath>
@@ -55,6 +56,11 @@
           </linkerLibItems>
         </linkerTool>
       </compileType>
+      <item path="include/relpipe/writer/AttributeMetadata.h"
+            ex="false"
+            tool="3"
+            flavor2="0">
+      </item>
       <item path="include/relpipe/writer/Factory.h" ex="false" tool="3" flavor2="0">
       </item>
       <item path="include/relpipe/writer/RelationalWriter.h"
@@ -111,6 +117,11 @@
           </linkerLibItems>
         </linkerTool>
       </compileType>
+      <item path="include/relpipe/writer/AttributeMetadata.h"
+            ex="false"
+            tool="3"
+            flavor2="0">
+      </item>
       <item path="include/relpipe/writer/Factory.h" ex="false" tool="3" flavor2="0">
       </item>
       <item path="include/relpipe/writer/RelationalWriter.h"