If you find that the Report Builder 3.0 Click Once Application fails to install, you might have the same issue I have had in this blog post.
I tried to create a Report in SCCM and when the ClickOnce Application for Report Builder 3.0 tried to install it got this error.
WOW, soo helpful, thanks Microsoft! Click on Details, and you will get some more helpful information. Scan the log file for something similar to below.
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://<server>/ReportServer/ReportBuilder/ReportBuilder_3_0_0_0.application?http://<server>/ReportServer/ConfigMgr_MTL/Hardware%20-%20Memory/Memory resulted in exception. Following failure messages were detected:
+ Unable to install this application because an application with the same identity is already installed. To install this application, either modify the manifest version for this application or uninstall the preexisting application.
This is most likely generated because you have installed Report Builder 3.0 once before. To fix this all you need to do is to clear the Click Once Application cache. Open up a command prompt and then type the following "rundll dfshim CleanOnlineAppCache" **NOTE** this command is case sensitive, I found that I had to type it exactly.
Now try again to Create or Edit a report.
Hope this helps!