An unexpected error has occurred when trying to create an Enterprise Search Center in SharePoint 2010

Issue Description

I tried to create a SharePoint Search Center with site template as Enterprise Search Center within a site collection in SharePoint 2010 and got the below error.

Reason

The SharePoint Server Publishing Infrastructure feature must be activated at the site collection level before creating a site with Enterprise Search Center template.

Resolution

So the next step was to enable the Publishing Infrastructure feature.

1) Go to Site Actions -> Site Settings -> Site collection features -> SharePoint Server Publishing Infrastructure

2) Click on Activate

Checked out and editable

If you see the above message in any of you SharePoint pages, it is because publishing feature has been enabled on your site. Whenever you make a change, you will see this yellow bar on top of the page.

Fix

After you are done making changes on the page, go to the Publish tab on the page and Publish