A error message generating the SiteMap

[hameau]

How I can fix it?

The default setting (since v3.1, I think) is not to ping search engines. The error message is a bit misleading, because it suggests that something has gone wrong (but the notification is green, not red).

If you want to ping search engines when you generate a sitemap, comment (disable) the following line in gsconfig.php:

Code:

define('GSDONOTPING', 1);

If you do not want to ping the search engines, do not change the line in gsconfig.php, just ignore the message. Check that the sitemap is being generated correctly.