The job specifically adds SiteDefinition.Empty to the list of SiteDefinitions it will go through. IIRC then it is for the media. i.e. what you saw is as designed

Ok, how to solve this? : D

This happens when running on schedule because the current HTTP Context is null, therefore, it's not possible to find out which site you are on. If you only have a single site, adding '*' as the site url will solve the issue.

For multi-site sometimes you can use ISiteDefinitionRepository to find all SiteDefinitions you have, pick the one you are interested, then use SiteDefinition.StartPage to get its startpage (e.g. when you process catalog content there's no direct relation between catalog items to the cms content and you typically match catalog name to site name or something like that). For CMS content you will probably need to get page ancestors up to the one having type Home Page - that will be the home page for that content.

In theory, your code could check if the current SiteDefinition is Empty or not and fallback to a "Default" one

@Ruslan

It is a single site and the configuration looks this way

Anything wrong with it?

That's the setup I meant. Just checked - works fine on catalog content. Might depend on the EPi version, though. I'd trust whatever Quan Mai says :)

@EVT: pseudo of course

if (SiteDefinition.Current == SiteDefinition.Empty)

{

startPage = fallbackStartPageInSetting;

}

else

{

startPage = ContentReference.StartPage;

}

//Get start page;

You can also have this

public ContentReference GetStartPageWithFallback()\

{

if (SiteDefinition.Current == SiteDefinition.Empty)

{

startPage = fallbackStartPageInSetting;

}

else

{

startPage = ContentReference.StartPage;

}

return startPage;

}

You can have a default fallback name, for example 

var fallbackSiteDefiniton = siteDefinitionRepo.List().FirstOrDefault(x=>x.Name == "default");

or

const Guid FallbackSiteId = new Guid("52513efb-37aa-4974-845b-70b990e65d08");

var fallbackSiteDefinition = siteDefinitionRepo.Get(FallbackSiteId);

This seems to work

Let's see what my colleagues think of it.