diff --git a/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/AcknowledgeChange.java b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/AcknowledgeChange.java
new file mode 100644
index 000000000..da2465f49
--- /dev/null
+++ b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/AcknowledgeChange.java
@@ -0,0 +1,10 @@
+package com.todoroo.astrid.actfm.sync.messages;
+
+public class AcknowledgeChange implements ServerToClientMessage {
+
+    @Override
+    public void processMessage() {
+        // TODO Auto-generated method stub
+    }
+
+}
diff --git a/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/Debug.java b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/Debug.java
new file mode 100644
index 000000000..e25add112
--- /dev/null
+++ b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/Debug.java
@@ -0,0 +1,10 @@
+package com.todoroo.astrid.actfm.sync.messages;
+
+public class Debug implements ServerToClientMessage {
+
+    @Override
+    public void processMessage() {
+        // TODO Auto-generated method stub
+    }
+
+}
diff --git a/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/DoubleCheck.java b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/DoubleCheck.java
new file mode 100644
index 000000000..b48c3e41f
--- /dev/null
+++ b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/DoubleCheck.java
@@ -0,0 +1,10 @@
+package com.todoroo.astrid.actfm.sync.messages;
+
+public class DoubleCheck implements ServerToClientMessage {
+
+    @Override
+    public void processMessage() {
+        // TODO Auto-generated method stub
+    }
+
+}
diff --git a/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/MakeChanges.java b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/MakeChanges.java
new file mode 100644
index 000000000..61f9a55a9
--- /dev/null
+++ b/astrid/plugin-src/com/todoroo/astrid/actfm/sync/messages/MakeChanges.java
@@ -0,0 +1,10 @@
+package com.todoroo.astrid.actfm.sync.messages;
+
+public class MakeChanges implements ServerToClientMessage {
+
+    @Override
+    public void processMessage() {
+        // TODO Auto-generated method stub
+    }
+
+}