catch some IO_ERRORs

common/single_top.cpp

@@ -226,6 +226,30 @@ struct APP_SINGLE_TOP : public wxApp
         return wxApp::OnExit();
     }
 
+    int OnRun()             // overload wxApp virtual
+    {
+        try
+        {
+            return wxApp::OnRun();
+        }
+        catch( const std::exception& e )
+        {
+            wxLogError( "Unhandled exception class: %s  what: %s",
+                typeid(e).name(), e.what() );
+        }
+        catch( const IO_ERROR& ioe )
+        {
+            wxLogError( "Unhandled exception class: %s  what: %s",
+                typeid( ioe ).name(), TO_UTF8( ioe.errorText ) );
+        }
+        catch(...)
+        {
+            wxLogError( "Unhandled exception of unknown type" );
+        }
+
+        return -1;
+    }
+
     /**
      * Function MacOpenFile
      * is specific to MacOSX (not used under Linux or Windows).

cvpcb/readwrite_dlgs.cpp

@@ -119,6 +119,20 @@ void CVPCB_MAINFRAME::SetNewPkg( const wxString& aFootprintName )
 }
 
 
+#if 0
+
+    /*
+
+    This code block was based on two major assumptions that are no longer true:
+    1) Footprint library basenames would remain the same.
+    (But no, basenames have been renamed in the github repo.)
+    2) *.mod files would still be around and merely reside in the FP_LIB_TABLE.
+    (But no, they have been converted to *.pretty.)
+
+    There is a newer replacement code block in the #else region.
+
+    */
+
 /**
  * Function missingLegacyLibs
  * tests the list of \a aLibNames by URI to determine if any of them are missing from
@@ -171,21 +185,6 @@ static bool missingLegacyLibs( FP_LIB_TABLE* aTbl, SEARCH_STACK& aSStack,
 }
 
 
-#if 0
-
-    /*
-
-    This code block was based on two major assumptions that are no longer true:
-    1) Footprint library basenames would remain the same.
-    (But no, basenames have been renamed in the github repo.)
-    2) *.mod files would still be around and merely reside in the FP_LIB_TABLE.
-    (But no, they have been converted to *.pretty.)
-
-    There is a newer replacement code block in the #else region.
-
-    */
-
-
 /**
  * Function convertFromLegacy
  * converts the footprint names in \a aNetList from the legacy format to the #FPID format.
@@ -460,7 +459,6 @@ bool CVPCB_MAINFRAME::ReadNetListAndLinkFiles()
 
 #else   // new strategy
 
-
 /// Return true if the resultant FPID has a certain nickname.  The guess
 /// is only made if this footprint resides in only one library.
 /// @return int - 0 on success, 1 on not found, 2 on ambiguous i.e. multiple matches
@@ -548,6 +546,8 @@ bool CVPCB_MAINFRAME::ReadNetListAndLinkFiles()
         {
             msg.Clear();
 
+            try
+            {
                 for( unsigned i = 0;  i < m_netlist.GetCount();  i++ )
                 {
                     COMPONENT* component = m_netlist.GetComponent( i );
@@ -582,6 +582,16 @@ bool CVPCB_MAINFRAME::ReadNetListAndLinkFiles()
                         }
                     }
                 }
+            }
+            catch( const IO_ERROR& ioe )
+            {
+                wxString msg = ioe.errorText;
+                msg += wxT( "\n\n" );
+                msg += _( "First check your fp-lib-table entries." );
+
+                wxMessageBox( msg, wxT( "Problematic fp-lib-tables" ) );
+                return false;
+            }
 
             if( msg.size() )
             {
@@ -593,7 +603,13 @@ bool CVPCB_MAINFRAME::ReadNetListAndLinkFiles()
                 dlg.MessageSet( wxT( "\nYou will need to reassign them manually if you want them "
                                      "to be updated correctly the next time you import the "
                                      "netlist in Pcbnew." ) );
+
+#if 1
                 dlg.ShowModal();
+#else
+                dlg.Fit();
+                dlg.Show( true );   // modeless lets user watch while fixing the problems, but its not working.
+#endif
             }
         }
         else