Parameters: SQL 2008 R2, Project Server 2010
Recently at a client I was configuring SSRS integration for SharePoint integration in Central Administration. When attempting to browse to the Report Server URL, I received the message below. Turns out the client had not installed SharePoint on the SSRS server. When setting up SSRS in SharePoint Integration Mode, however, the SharePoint bits MUST be installed on the SSRS server. Since this is the case, that server must also have Project Server installed as well and everything patched at the same level, because all farm servers must have the same bits/patch levels installed.