Sharepoint 2013 RS - Adding a New "Data Source" or "Report Builder" in a Library

Question

I've installed SQL Server Reporting Services SharePoint Integration Mode. I also enabled SQL Reporting in the Library setting. But, When I click to open a new "Data Source" or "Report Builder" an error occurs:
'New Document' requires a Microsoft
SharePoint Foundation-compatible application and web browser. To add a document to this document library, click the 'Upload Document' button.
SharePoint 2013 Enterprise
SQL Server 2012 SP1 + RS add-in + PowePivot add-inn
MS Office 2013 Professional Plus
Internet Explorer 10
I've also tried a hotfix pakage for office 2013 called: owssupp2013kb2726997fullfilex64glb
Sharepoint Stssync Handler add-in infromation in Internet Explorer:
Name:                   SharePoint Stssync Handler
Publisher:              Microsoft Corporation
Type:                   ActiveX Control
Architecture:           32-bit and 64-bit
Version:                15.0.4517.1001
File date:              ‎Tuesday, ‎May ‎21, ‎2013, ‏‎12:57 PM
Date last accessed:     ‎Today, ‎December ‎16, ‎2013, ‏‎36 minutes ago
Class ID:               {BDEADEF5-C265-11D0-BCED-00A0C90AB50F}
Use count:              6
Block count:            0
File:                   OWSSUPP.DLL
Folder:                 C:\Program Files\Microsoft Office\Office15

Answer 1

Hi,
i had the same problem. First we figured out, that the Report Builder was working in the  Root Site Collection of a Web Application but not in any other Site Collection of the WebApplication.
After that we took a look how the Report Builder is started. The Content Type got a Click Once Application as Template, but you can't open the URL in the Browser neither the referenced file can be found in the Feature folder on the SharePoint Server. Turns
out SharePoint does some crazy http redirection and that this doesn't work on Site Collections which are not at the root. At least if you installed Reporting Services Add In Service Pack 1.
Fun Fact: If you start the Report Builder on the Root Site Collection you can create a Report which works on any Site Collection. Its just the launch if the Report Builder which is broken.
Our Solution was the SQL Server 2012 Service Pack 1 Cumulative Update 8 which fixed the Problem.
You can request a download here: http://support.microsoft.com/kb/2917531
Select the "2012_SP1_RSShrPnt_CU8_2917531_11_0_3401_x64" Fix and install it on every SharePoint Server in your Farm.