I was following the directions below to try to fix an issue where my document library would not give me the option to create a document of type "Report Data Source"
http://technet.microsoft.com/en-us/library/bb326289(v=sql.110).aspx
After doing this step
Enable Content Types in all document libraries in an Existing Business Intelligence Center
To enable the content types and content management in all document libraries in an existing Business Intelligence Center site, you can toggle the Reporting Services integration feature.
Go to Site settings.
In SharePoint 2013, click the Settings icon.
![SharePoint Settings]( "SharePoint Settings")
In SharePoint 2010, click Site Actions, then click Site Settings.
Click Site collection features.
Find the Report Server Integration Feature and click Deactivate.
Refresh the browser then click Activate for the Report Server Integration Feature.
Clicking Activate not gives me this error:
Sorry, something went wrong
The content type with Id 0x010100C3676CDFA2F24E1D949A8BF2B06F6B8B defined in feature {e8389ec7-70fd-4179-a1c4-6fcb4342d7a0} was found in the current site collection or in a subsite
Any pointers on fixing this. I already deleted my power pivot gallery thinking that might be where the content type was defined but I still can't activate the feature.