SharePoint 2010 Document Set's Welcome Page Gives 404 Error

Question

I have an OOTB site and document library. I added the document set content type to the library without any errors. I created a new document set, added the attributes and clicked OK. It went directly to a 404 page.

I went back to the document library home page, refreshed and the new document set record was displayed. I was able to view and edit properties.

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1) If I navigate to:

http://mySP/sites/mySPSite/_layouts/DocSetHome.aspx?id=/corpaffair/DRMSProjects/TEST01/TEST_A

I get the 404 error

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2) If I navigate to:

http://mySP/sites/mySPSite/_layouts/DocSetHome.aspx

I get a System.NullReferenceException error which makes sense since I removed the id attribute

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Question

How do I debug a 404 error for a Document Set's Welcome Page?

Answer 1

I was able to resolve this issue by deactivating and activating the site collection feature Document Sets.