Error occured with Blob Cache in

Question

I am getting the following error in Event viewer, after enabling Blob Cache :

An error occured in the blob cache. The exception message was 'The system cannot find the file specified. (Exception from HRESULT: 0x80070002)'.

Answer 1

In siutations like this, I tended to make use of WinDbg, the Windows debugger available from Microsoft. WinDbg would allow you to attach to the IIS process that is serving the SharePoint site, and then you can catch and analyse exceptions which you may not see in the SharePoint UI.

This could help you figure out, in your case, what file is missing.

Here are some articles that can help you get started:

http://blogs.msdn.com/b/kaevans/archive/2011/04/11/intro-to-windbg-for-net-developers.aspx

http://blogs.msdn.com/b/kaevans/archive/2011/04/13/windbg-and-psscor2-for-sharepoint-developers.aspx

http://www.parallelfun.com/2012/11/using-windbg-to-debug-sharepoint.html

I won't like to you, there is a steep learning curve to using WinDbg and the tools to debug what's going on, but it's a very powerful way of working out what's going on.

Answer 2

Reset the cache by going to Site settings -> Site collection Object cache -> Reset object cache. Make sure to select "Force all servers to flush their object cache", this will regenerate the cache on the next visit to the page.