Cannot modify header information?

[eluser]cahva[/eluser]
As the error suggests, you probably have outputted something in the Template library at C:\xampp\htdocs\xxx\apps\adminapp\libraries\Template.php

Check that file that you dont have any white space, new lines etc. And be sure that you dont end the library with ?>. Thats usually the problem that there is php end tag but after that there is some empty lines after that(thus resulting that header error).