I'm a bit of a Android noob, as of today.

I have tried setting a picture to the background as follows;

```
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:background="C:\Users\Jacob\Downloads\xmas.jpg"
android:layout_height="match_parent"
tools:context=".MainActivity" >

```

But when i build it comes up with; 

'Description Resource Path Location Type
error: Error: String types not allowed (at 'background' with value 'C:\Users\Jacob\Downloads\xmas.jpg'). activity\_main.xml /FirstAndroidApp/res/layout line 1 Android AAPT Problem'

When i go in to the designer it shows the background as i would like it, but just comes up with an error.

Am I not allowed to set a background in this way? or am i missing something?