Cannot Modify Header Information - Already Modified By...

Installation seems to have gone ok, but upon logging into in, something similar to the following message appears...

Warning: Cannot modify header information - headers already sent by (output started at /home/resilien/public_html/yourdomain//ashop/admin/config.inc.php:50) in /home/resilien/public_html/yourdomain/ashop/admin/login.php(2) : eval()'d code on line 102

Some servers have trouble with an empty line feed at the end of config.inc.php. The empty line feed appears to be inserted by some FTP client programs when uploading PHP files. To fix the trouble in admin/config.inc.php, remove the extra line feed(s) at the end of config.inc.php and, if necessary, try a different FTP client.