Android "Valid XML document must have a root tag at line"

Question

Before asking this question, I searched goole and so as well but I could not found any help. The code looks well but I am unable to understand the error

Valid XML document must have a root tag at line 15.

Please have a look to the attached image.

any help will be much appreciated.

Additional:

I have analyzed code many times. But still getting the following:
Thanks in advance. Iqbal

Solution

Remove the </android.support....> line and just close the tag so: />

Comments

[Phantômaxx]

May I ask the downvoter the reason for downvoting? If the answer has been accepted, I think it doesn't deserve a -1.