eclipse - parseSdkContent failed Could not initialize class android.graphics.Typeface

Question

When I open layout editor, eclipse is giving this error:

parseSdkContent failed
Could not initialize class android.graphics.Typeface

And when I try to run project, it is giving this error :

An internal error occurred during: "Launching myapp".
java.lang.NullPointerException

Every time I'm getting this error and I have to restart eclipse. Is there any solution? This problem started suddenly today.

---

XML file:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#66000000"
     >

    <RelativeLayout
        android:id="@+id/refresh_match_layout"
        android:layout_width="fill_parent"
        android:layout_height="150dp"
        android:layout_centerInParent="true"
        android:layout_margin="15dp"
        android:background="@drawable/app_detay_lay_bg"
        android:orientation="vertical"
        android:padding="10dp"
        android:visibility="visible" >

        <ImageView
            android:id="@+id/app_icon"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:padding="10dp"
            android:textColor="#ffffff"
            android:textSize="20sp" />

        <TextView
            android:id="@+id/app_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="8dp"
            android:textColor="#000000"
            android:layout_toRightOf="@+id/app_icon"
            android:layout_marginTop="2dp"
            android:textSize="20sp" />

        <ImageButton
            android:id="@+id/app_detail_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="2dp"
            android:background="@null"
            android:src="@drawable/settings_detail"/>

        <ImageButton
            android:id="@+id/app_remove_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@+id/app_icon"
            android:layout_alignTop="@+id/app_detail_button"
            android:background="@null"
            android:src="@drawable/settings_remove" />

    </RelativeLayout>

</RelativeLayout>

Error picture:

Answer 1

I deleted the home/.android folder and everything is normal now.

In Windows you can find this folder in C:/Users/User/

Source: https://stackoverflow.com/a/5883841/3681056

Note: it happens when you have 2 versions of SDK and eclipse, both in the same computer (and using the same .android file), if you open on version the other will get this error.