diff --git a/samples/android/face-detection/src/org/opencv/samples/fd/FdView.java b/samples/android/face-detection/src/org/opencv/samples/fd/FdView.java
index cff1af33ce..facad4c660 100644
--- a/samples/android/face-detection/src/org/opencv/samples/fd/FdView.java
+++ b/samples/android/face-detection/src/org/opencv/samples/fd/FdView.java
@@ -83,7 +83,7 @@ class FdView extends SampleCvViewBase {
             int faceSize = Math.round(height * FdActivity.minFaceSize);
             List<Rect> faces = new LinkedList<Rect>();
             mCascade.detectMultiScale(mGray, faces, 1.1, 2, 2 // TODO: objdetect.CV_HAAR_SCALE_IMAGE
-                    , new Size(faceSize, faceSize));
+                    , new Size(faceSize, faceSize), new Size());
 
             for (Rect r : faces)
                 Core.rectangle(mRgba, r.tl(), r.br(), new Scalar(0, 255, 0, 255), 3);
diff --git a/samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java b/samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java
index 715dd4cb5b..34b233e74f 100644
--- a/samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java
+++ b/samples/android/image-manipulations/src/org/opencv/samples/imagemanipulations/ImageManipulationsView.java
@@ -107,7 +107,7 @@ class ImageManipulationsView extends SampleCvViewBase {
                 CreateAuxiliaryMats();
 
             Imgproc.Sobel(mGrayInnerWindow, mIntermediateMat, CvType.CV_8U, 1, 1);
-            Core.convertScaleAbs(mIntermediateMat, mIntermediateMat, 10);
+            Core.convertScaleAbs(mIntermediateMat, mIntermediateMat, 10, 0);
             Imgproc.cvtColor(mIntermediateMat, mRgbaInnerWindow, Imgproc.COLOR_GRAY2BGRA, 4);
             break;
 
diff --git a/samples/android/tutorial-0-androidcamera/.classpath b/samples/android/tutorial-0-androidcamera/.classpath
index aff8e75b8a..8981741b82 100644
--- a/samples/android/tutorial-0-androidcamera/.classpath
+++ b/samples/android/tutorial-0-androidcamera/.classpath
@@ -3,5 +3,6 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>
diff --git a/samples/android/tutorial-3-native/.classpath b/samples/android/tutorial-3-native/.classpath
index aff8e75b8a..8981741b82 100644
--- a/samples/android/tutorial-3-native/.classpath
+++ b/samples/android/tutorial-3-native/.classpath
@@ -3,5 +3,6 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>