Added debug prints

added debug prints to find problem

Author: jeroenoverman

arduino-core/src/processing/app/Sketch.java

@@ -106,6 +106,7 @@ public boolean reload() throws IOException {
   private List<SketchFile> listSketchFiles(boolean showWarnings) throws IOException {
     Set<SketchFile> result = new TreeSet<>(CODE_DOCS_COMPARATOR);
     for (File file : FileUtils.listFiles(folder, false, EXTENSIONS)) {
+      System.out.println("File found: " + file.getName()); //added for debug
       if (BaseNoGui.isSanitaryName(FileUtils.splitFilename(file).basename)) {
         result.add(new SketchFile(this, file));
       } else if (showWarnings) {
@@ -355,9 +356,12 @@ public void saveAs(File newFolder) throws IOException {
 
     // Copy the data folder (this may take a while.. add progress bar?)
     if (getDataFolder().exists()) {
+      System.out.println("Data folder is found and exists.");
       File newDataFolder = new File(newFolder, "data");
       FileUtils.copy(getDataFolder(), newDataFolder);
     }
+    
+    
   }
 
   /**