The requirement is to view a sharepoint task list from a subsite(not another site collection) on root site and other subsite.
Task list location
Locations for display
I know that for a regular list, you can open a view of a list, insert data view of the list, and save as webpart to site collection. I have done this on this site collection for other lists, but when I do this for a task list, it saves fine. When I edit the webpart page I want to add the task list to, I can add the web part, and it displays on the page, but when I save the page, I get the correlation error page with a link to the web part maintenance mode.
Looking at the ULS, I see the error "Base URL does not match the first part of the URL; strUrl: '/subsite2/SitePages/Home.aspx'; strBaseUrl: '/subsite1'