The content type “Document Collection Folder” at “…” is sealed

Question

It is about 2 days when myself as full control and my users try to upload a document to SharePoint 2013 assets library this error popup for them

The content type “Document Collection Folder” at “…” is sealed.

I searched and I activated the "Video and Rich Media" feature in site collection level but it didn't change.

It is very important and critical, so I appreciate if anyone can help regarding this issue.

Have you tried deleting and recreating the asset library you're trying to upload content to? — Andy Dawson, Feb 25 '16 at 11:52
Yes I activates the rich media feature and recreated the library but still I have error while try to add new film with New Document button. something strange that I recently notices is that I have "Add new Document " at top of my library but if it is assets library I should have "Add New Item"?!!! — Shaghayegh, Feb 25 '16 at 13:30

Shaghayegh · Accepted Answer · 2016-03-29 05:52:23Z

2

I reached the answer my self and after activating "Rich Video" and "Doc Set " feature and recreating the Library it got solve. Thanks

answered Mar 29 '16 at 5:52

Shaghayegh

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Eric N Jochens · Accepted Answer · 2018-08-01 15:19:05Z

2

I confirm you must:

answered Aug 1 '18 at 15:19

Eric N Jochens

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