title: com.facebook.widget.loginbutton error in xml
body: <p>I know as soon as I post this question on stackOverflow it is going to be marked as duplicate but trust me I have tried every possible solution discussed under the same topic in StackOverflow.</p>
  
  <p>I am trying to add Facebook SDK in my project . After adding it under my project->properties->Android (then add facebook adk as library) , when i try to create my xml file and use  it shows me red cross next to it and no matter what i do I am not able to make this error go away. Please help me..Anything help is appreciated!!</p>