Attribute is missing the Android namespace prefix in menu_main.xml

Question

I am new to android and am following this one tutorial pdf guide. so far ive not found many unfixable errors.

except when i tried creating a folder in manifest of type menu and created menu_main.xml.

i get attribute is missing from the android name space prefix and a bunch other errors like unexpected text found in layout.. here is the code i pasted from the book. to the menu_main.xml

<?xml version="1.0" encoding="utf-8"?>
  <menu xmlns:android="http://schemas.android.com/apk/res/android">
  <!-- Our add icon will have its own button -->
 <item android﹕id="@+id/action_add"
       android﹕icon="@drawable/ic_add_white_24dp"
        android﹕title="@string/action_add"
        app﹕showAsAction="ifRoom" /> 
</menu>

Answer 1

Turns out all I had to do was delete the colons and re-type them because the spacing between the android:something was a little out of normal.