O XML É ??? veja..... ERRO É unfortunately MyApplication has stopped

Olá esqueci de colocar o arquivo XML segue abaixo.

ERRO É unfortunately MyApplication has stopped

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
tools:context=".Main"
android:orientation="vertical">

<br.com.forca.jogos.jogodaforca.ForcaView
    android:layout_width="wrap_content"
    android:layout_height="800px"
    android:id="@+id/fvJogo"
    android:layout_gravity="center"/>


<EditText

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/etLetra"
    android:maxLength="1"
    android:layout_gravity="center_horizontal|bottom" />

<Button

    android:layout_width="150dp"
    android:layout_height="wrap_content"
    android:id="@+id/btJogar"
    android:enabled="false"
    android:layout_gravity="center_horizontal|bottom"
    android:text="Jogar"/>

<Button

    android:layout_width="150dp"
    android:layout_height="wrap_content"
    android:id="@+id/btPlay"
    android:enabled="true"
    android:layout_gravity="center_horizontal|bottom"
    android:text="Play"/>

</LinearLayout>