diff --git a/app/src/processing/app/Base.java b/app/src/processing/app/Base.java
index 41fe9ea8f..5760b3748 100644
--- a/app/src/processing/app/Base.java
+++ b/app/src/processing/app/Base.java
@@ -2604,12 +2604,7 @@ public class Base {
    * Remove all files in a directory and the directory itself.
    */
   static public void removeDir(File dir) {
-    if (dir.exists()) {
-      removeDescendants(dir);
-      if (!dir.delete()) {
-        System.err.println(I18n.format(_("Could not delete {0}"), dir));
-      }
-    }
+    BaseNoGui.removeDir(dir);
   }
 
 
@@ -2620,24 +2615,7 @@ public class Base {
    * (i.e. when cleaning temp files from lib/build)
    */
   static public void removeDescendants(File dir) {
-    if (!dir.exists()) return;
-
-    String files[] = dir.list();
-    for (int i = 0; i < files.length; i++) {
-      if (files[i].equals(".") || files[i].equals("..")) continue;
-      File dead = new File(dir, files[i]);
-      if (!dead.isDirectory()) {
-        if (!Preferences.getBoolean("compiler.save_build_files")) {
-          if (!dead.delete()) {
-            // temporarily disabled
-	    System.err.println(I18n.format(_("Could not delete {0}"), dead));
-          }
-        }
-      } else {
-        removeDir(dead);
-        //dead.delete();
-      }
-    }
+    BaseNoGui.removeDescendants(dir);
   }
 
 
diff --git a/app/src/processing/app/BaseNoGui.java b/app/src/processing/app/BaseNoGui.java
index 81413d740..9e420503b 100644
--- a/app/src/processing/app/BaseNoGui.java
+++ b/app/src/processing/app/BaseNoGui.java
@@ -391,6 +391,45 @@ public class BaseNoGui {
     PreferencesData.init(absoluteFile(preferencesFile));
   }
 
+  /**
+   * Recursively remove all files within a directory,
+   * used with removeDir(), or when the contents of a dir
+   * should be removed, but not the directory itself.
+   * (i.e. when cleaning temp files from lib/build)
+   */
+  static public void removeDescendants(File dir) {
+    if (!dir.exists()) return;
+
+    String files[] = dir.list();
+    for (int i = 0; i < files.length; i++) {
+      if (files[i].equals(".") || files[i].equals("..")) continue;
+      File dead = new File(dir, files[i]);
+      if (!dead.isDirectory()) {
+        if (!Preferences.getBoolean("compiler.save_build_files")) {
+          if (!dead.delete()) {
+            // temporarily disabled
+        System.err.println(I18n.format(_("Could not delete {0}"), dead));
+          }
+        }
+      } else {
+        removeDir(dead);
+        //dead.delete();
+      }
+    }
+  }
+
+  /**
+   * Remove all files in a directory and the directory itself.
+   */
+  static public void removeDir(File dir) {
+    if (dir.exists()) {
+      removeDescendants(dir);
+      if (!dir.delete()) {
+        System.err.println(I18n.format(_("Could not delete {0}"), dir));
+      }
+    }
+  }
+
   /**
    * Spew the contents of a String object out to a file.
    */
diff --git a/app/src/processing/app/debug/Compiler.java b/app/src/processing/app/debug/Compiler.java
index b606bb39c..d11cf9c87 100644
--- a/app/src/processing/app/debug/Compiler.java
+++ b/app/src/processing/app/debug/Compiler.java
@@ -39,7 +39,6 @@ import java.util.Map;
 import java.util.SortedSet;
 import java.util.TreeSet;
 
-import processing.app.Base;
 import processing.app.BaseNoGui;
 import processing.app.I18n;
 import processing.app.PreferencesData;
@@ -201,7 +200,7 @@ public class Compiler implements MessageConsumer {
       // the next time we start up, internal runs using Runner won't
       // work because the build dir won't exist at startup, so the classloader
       // will ignore the fact that that dir is in the CLASSPATH in run.sh
-      Base.removeDescendants(tempBuildFolder);
+      BaseNoGui.removeDescendants(tempBuildFolder);
     } else {
       // delete only stale source files, from the previously
       // compiled sketch.  This allows multiple windows to be