Why Would Eclipse Tell Me There Is No Attribute "margin" For A Linearlayout?

I'm getting an error when I try and build my android project: No resource identifier found for attribute 'margin' in package 'android' And it references this layout as the culpri

Solution 1:

The correct attribute name for declaring a 5p margin in every direction is:

android:layout_margin="5dp"

Note the layout_ prefix. You'll want to remove the line that says android:margin="5dp", which is what makes Eclipse complain.

The full set of valid margin attributes includes:

• layout_margin
• layout_marginBottom
• layout_marginEnd
• layout_marginLeft
• layout_marginRight
• layout_marginStart
• layout_marginTop