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here i attached my program.In this Program 2 errors are there. I don't know how to clear those errors...

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"/>

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AlertDialog.AppCompat.Light" >


<include layout="@layout/content_main" />

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="@dimen/activity_horizontal_margin"
    android:src="@android:drawable/ic_dialog_email" />

Gowtham Subramaniam
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  • Post content_main.xml – Raghavendra May 10 '16 at 09:58
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    Possible duplicate of [Android xml error: "No resource found that matches the given name" with RelativeLayout (@id/LinearLayout\_acc, @id/ProgressBar\_statusScreen)](http://stackoverflow.com/questions/11668718/android-xml-error-no-resource-found-that-matches-the-given-name-with-relative) –  May 10 '16 at 10:02
  • create a `dimen.xml` and create a resources `nav_header_height` and give the size in `dp` – Devendra Singh May 10 '16 at 10:06

1 Answers1

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Add following line into "res/values/dimens.xml" file -

 <dimen name="nav_header_height">50dp</dimen>
Onkar Nene
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