i'm trying to Create splash screen on Android Studio and i have this Little problem with the code
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_weight="match_parent"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context="splash">
<TextView android:text="splash screen" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textsize="45dp"
android:layout_aligmParentBottom="true"
android:id="@+id/text"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageView"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:src="@drawable/preview"/>
</RelativeLayout>
(Error:Error: 'S' is not a valid file-based resource name character: File-based resource names must contain only lowercase a-z, 0-9, or underscore).
All the s is lowercase
I do not know what is the problem .
images to the problem