diff --git a/3d-viewer/3d_canvas/board_adapter.cpp b/3d-viewer/3d_canvas/board_adapter.cpp
index 316ca5559c..6497c984c2 100644
--- a/3d-viewer/3d_canvas/board_adapter.cpp
+++ b/3d-viewer/3d_canvas/board_adapter.cpp
@@ -426,8 +426,10 @@ void BOARD_ADAPTER::InitSettings( REPORTER* aStatusReporter, REPORTER* aWarningR
     if( aStatusReporter )
         aStatusReporter->Report( _( "Build board body" ) );
 
-    if( !createBoardPolygon() )
-        aWarningReporter->Report( _( "Board outline is not closed" ), RPT_SEVERITY_WARNING );
+    wxString msg;
+
+    if( !createBoardPolygon( &msg ) )
+        aWarningReporter->Report( _( "Board outline is not closed: " ) + msg, RPT_SEVERITY_WARNING );
     else
         aWarningReporter->Report( wxEmptyString );
 
@@ -454,13 +456,13 @@ void BOARD_ADAPTER::InitSettings( REPORTER* aStatusReporter, REPORTER* aWarningR
 }
 
 
-bool BOARD_ADAPTER::createBoardPolygon()
+bool BOARD_ADAPTER::createBoardPolygon( wxString* aErrorMsg )
 {
     m_board_poly.RemoveAllContours();
 
     wxString errmsg;
 
-    return m_board->GetBoardPolygonOutlines( m_board_poly, &errmsg );
+    return m_board->GetBoardPolygonOutlines( m_board_poly, aErrorMsg );
 }
 
 
diff --git a/3d-viewer/3d_canvas/board_adapter.h b/3d-viewer/3d_canvas/board_adapter.h
index dbccded218..b1e607c44a 100644
--- a/3d-viewer/3d_canvas/board_adapter.h
+++ b/3d-viewer/3d_canvas/board_adapter.h
@@ -569,7 +569,7 @@ class BOARD_ADAPTER
      *
      * @return false if the outline could not be created
      */
-    bool createBoardPolygon();
+    bool createBoardPolygon( wxString* aErrorMsg );
     void createLayers( REPORTER* aStatusReporter );
     void destroyLayers();
 
diff --git a/common/reporter.cpp b/common/reporter.cpp
index d657f60aa9..86fc52f82e 100644
--- a/common/reporter.cpp
+++ b/common/reporter.cpp
@@ -199,6 +199,9 @@ void INFOBAR_REPORTER::Finalize()
         case RPT_SEVERITY_IGNORE:    icon = wxICON_INFORMATION; break;
     }
 
+    if( m_message.EndsWith( "\n" ) )
+        m_message = m_message.Left( m_message.Length() - 1 );
+
     if( HasMessage() )
         m_infoBar->QueueShowMessage( m_message, icon );
     else
diff --git a/pcbnew/class_board.cpp b/pcbnew/class_board.cpp
index f8dc3fd202..fd7f3a5a49 100644
--- a/pcbnew/class_board.cpp
+++ b/pcbnew/class_board.cpp
@@ -1813,11 +1813,11 @@ extern bool BuildBoardPolygonOutlines( BOARD* aBoard, SHAPE_POLY_SET& aOutlines,
                                 wxPoint* aErrorLocation = nullptr );
 
 
-bool BOARD::GetBoardPolygonOutlines( SHAPE_POLY_SET& aOutlines, wxString* aErrorText, wxPoint* aErrorLocation )
+bool BOARD::GetBoardPolygonOutlines( SHAPE_POLY_SET& aOutlines, wxString* aErrorText,
+                                     wxPoint* aErrorLocation )
 {
-
     bool success = BuildBoardPolygonOutlines( this, aOutlines, aErrorText,
-            GetDesignSettings().m_MaxError, aErrorLocation );
+                                              GetDesignSettings().m_MaxError, aErrorLocation );
 
     // Make polygon strictly simple to avoid issues (especially in 3D viewer)
     aOutlines.Simplify( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
diff --git a/pcbnew/class_board.h b/pcbnew/class_board.h
index d230e3b2fd..3460ac295b 100644
--- a/pcbnew/class_board.h
+++ b/pcbnew/class_board.h
@@ -621,8 +621,8 @@ public:
      *
      * @return true if success, false if a contour is not valid
      */
-    bool GetBoardPolygonOutlines( SHAPE_POLY_SET& aOutlines,
-                                  wxString* aErrorText = nullptr, wxPoint* aErrorLocation = nullptr );
+    bool GetBoardPolygonOutlines( SHAPE_POLY_SET& aOutlines, wxString* aErrorText = nullptr,
+                                  wxPoint* aErrorLocation = nullptr );
 
     /**
      * Function ConvertBrdLayerToPolygonalContours
diff --git a/pcbnew/convert_drawsegment_list_to_polygon.cpp b/pcbnew/convert_drawsegment_list_to_polygon.cpp
index 28e8e24825..aaf04b2119 100644
--- a/pcbnew/convert_drawsegment_list_to_polygon.cpp
+++ b/pcbnew/convert_drawsegment_list_to_polygon.cpp
@@ -488,9 +488,9 @@ bool ConvertOutlineToPolygon( std::vector<DRAWSEGMENT*>& aSegList, SHAPE_POLY_SE
                 {
                     if( aErrorText )
                     {
-                        msg.Printf( _( "Unable to find segment with an endpoint of (%s, %s)." ),
-                                StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.x, true ),
-                                StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.y, true ) );
+                        msg.Printf( _( "Unable to find edge with an endpoint of (%s, %s)." ),
+                                    StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.x, true ),
+                                    StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.y, true ) );
 
                         *aErrorText << msg << "\n";
                     }
@@ -694,7 +694,7 @@ bool ConvertOutlineToPolygon( std::vector<DRAWSEGMENT*>& aSegList, SHAPE_POLY_SE
                     {
                         if( aErrorText )
                         {
-                            msg.Printf( _( "Unable to find segment with an endpoint of (%s, %s)." ),
+                            msg.Printf( _( "Unable to find edge with an endpoint of (%s, %s)." ),
                                         StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.x, true ),
                                         StringFromValue( EDA_UNITS::MILLIMETRES, prevPt.y, true ) );
 
@@ -758,8 +758,8 @@ bool ConvertOutlineToPolygon( std::vector<DRAWSEGMENT*>& aSegList, SHAPE_POLY_SE
  * Any closed outline inside the main outline is a hole
  * All contours should be closed, i.e. valid closed polygon vertices
  */
-bool BuildBoardPolygonOutlines( BOARD* aBoard, SHAPE_POLY_SET& aOutlines,
-        wxString* aErrorText, unsigned int aTolerance, wxPoint* aErrorLocation )
+bool BuildBoardPolygonOutlines( BOARD* aBoard, SHAPE_POLY_SET& aOutlines, wxString* aErrorText,
+                                unsigned int aTolerance, wxPoint* aErrorLocation )
 {
     PCB_TYPE_COLLECTOR  items;
     bool                success = false;
@@ -783,6 +783,10 @@ bool BuildBoardPolygonOutlines( BOARD* aBoard, SHAPE_POLY_SET& aOutlines,
         success = ConvertOutlineToPolygon( segList, aOutlines, aErrorText, aTolerance,
                                            aErrorLocation );
     }
+    else
+    {
+        *aErrorText = _( "No edges found on Edge.Cuts layer." );
+    }
 
     if( !success || !aOutlines.OutlineCount() )
     {