The reason you are seeing this error is because Android considers the following images to be the same, based on how they are referenced in your layouts:
E:\Android\LED\app\src\main\res\drawable-hdpi\login_bg.png
E:\Android\LED\app\src\main\res\drawable-hdpi\login_bg.9.png
The first image, login_bg.png, is a normal image. The second image, login_bg.9.png, is named in such a way to tell Android that it is a 9-patch image. However, in terms of referencing the images, they are declared the same, as in the following examples.
Normal image:
<ImageView
android:id="@+id/normalImage"
android:background="@drawable/login_bg"/>
Nine-patch image:
<ImageView
android:id="@+id/ninePatchImage"
android:background="@drawable/login_bg"/>
Note: There is no difference in terms of referencing the images from the /res/drawables directory of your Android project.
See here for more info about nine-patch image, or the correct term for it is nine-patch drawable. For reference, nine-patch drawables must be declared as <name>.9.png, as in login_bg.9.png.
Therefore, simply renaming them will not solve the issue. You need to check with whoever developed the UI to see which one should be used: either the normal image (login_bg.png) or the 9-patch image (login_bg.9.png)—not both.