diff --git a/anabatic/src/AnabaticEngine.cpp b/anabatic/src/AnabaticEngine.cpp
index 4bd173a7..9c1af35d 100644
--- a/anabatic/src/AnabaticEngine.cpp
+++ b/anabatic/src/AnabaticEngine.cpp
@@ -338,7 +338,10 @@ namespace Anabatic {
     _matrix.setCell( cell, _configuration->getSliceHeight() );
     Edge::unity = _configuration->getSliceHeight();
 
-    if (not _blockageNet) _blockageNet = Net::create( cell, "blockagenet" );
+    if (not _blockageNet) {
+      _blockageNet = Net::create( cell, "blockagenet" );
+      _blockageNet->setType( Net::Type::BLOCKAGE );
+    }
   }
 
 
diff --git a/anabatic/src/AutoHorizontal.cpp b/anabatic/src/AutoHorizontal.cpp
index 2bc32eed..797b202a 100644
--- a/anabatic/src/AutoHorizontal.cpp
+++ b/anabatic/src/AutoHorizontal.cpp
@@ -224,13 +224,15 @@ namespace Anabatic {
       gcell = gcell->getEast( yprobe );
       if (not gcell) {
         success = false;
-        cerr << Error( "AutoHorizontal::getGCells() : NULL GCell under %s\n"
-                       "        begin:%s\n"
-                       "        end:  %s"
-                     , getString(this).c_str()
-                     , getString(getAutoSource()->getGCell()).c_str()
-                     , getString(getAutoTarget()->getGCell()).c_str()
-                     ) << endl;
+        if (not isCreated()) {
+          cerr << Error( "AutoHorizontal::getGCells() : NULL GCell under %s\n"
+                         "        begin:%s\n"
+                         "        end:  %s"
+                       , getString(this).c_str()
+                       , getString(getAutoSource()->getGCell()).c_str()
+                       , getString(getAutoTarget()->getGCell()).c_str()
+                       ) << endl;
+        }
         break;
       }
 
diff --git a/anabatic/src/AutoVertical.cpp b/anabatic/src/AutoVertical.cpp
index 774b7fb0..d31d0708 100644
--- a/anabatic/src/AutoVertical.cpp
+++ b/anabatic/src/AutoVertical.cpp
@@ -218,13 +218,15 @@ namespace Anabatic {
 
       if (not gcell) {
         success = false;
-        cerr << Error( "AutoVertical::getGCells() : NULL GCell under %s\n"
-                       "        begin:%s\n"
-                       "        end:  %s"
-                     , getString(this).c_str()
-                     , getString(getAutoSource()->getGCell()).c_str()
-                     , getString(getAutoTarget()->getGCell()).c_str()
-                     ) << endl;
+        if (not isCreated()) {
+          cerr << Error( "AutoVertical::getGCells() : NULL GCell under %s\n"
+                         "        begin:%s\n"
+                         "        end:  %s"
+                       , getString(this).c_str()
+                       , getString(getAutoSource()->getGCell()).c_str()
+                       , getString(getAutoTarget()->getGCell()).c_str()
+                       ) << endl;
+        }
         break;
       }
 
diff --git a/anabatic/src/NetBuilder.cpp b/anabatic/src/NetBuilder.cpp
index e62357f4..197adda1 100644
--- a/anabatic/src/NetBuilder.cpp
+++ b/anabatic/src/NetBuilder.cpp
@@ -2327,8 +2327,10 @@ namespace Anabatic {
     size_t       degree        = routingPads.getSize();
 
     if (degree == 0) {
-      cmess2 << Warning("Net \"%s\" do not have any RoutingPad (ignored)."
-                       ,getString(net->getName()).c_str()) << endl;
+      if (not net->isBlockage()) {
+        cmess2 << Warning( "Net \"%s\" do not have any RoutingPad (ignored)."
+                         , getString(net->getName()).c_str() ) << endl;
+      }
       cdebug_tabw(145,-1);
       return;
     }