Hiya,
I have just migrated the site from one server to another using the following process:
1. taking all the files and posting them on the new server
2. Migrated a database dump across
3. Changed the database settings to fit the new server
The site works generally, but it seems that anything that uses header changes fails, for example the search will not work if you send a keyword in the form, if you do that you get a blank page. But if you go to the page directly i.e. (index.php?q=search/node) in which case i get the following error:
warning: Cannot modify header information - headers already sent by (output started at D:\path\to\script\template.php:13) in D:\path\to\script\includes\common.inc on line 269.
The administrator login has a similar issue, logging in gives a blank page, but when you go to the link directly afterward you get the following error:
Cannot modify header information - headers already sent by (output started at D:\path\to\script\template.php:13) in D:\path\to\script\includes\common.inc on line 269.
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I have seen people ask if there are any extra lines after ?> in template.php on this forum, but i have checked here and there isn't.
The most puzzling thing is, that this code base and database are running correctly on the other server (and are still live).