The rvaddon.msi file is the installer package for the Microsoft Report Viewer Add-on. Specifically, for Visual Studio 2015, this add-on provides the necessary design-time components to create and edit RDLC (Report Definition Language Client-side) reports. Without this add-on installed: You cannot open the Report Designer. Existing .rdlc files may open as raw XML code.
Locate , right-click it, and select Change . In the setup window, click Modify . rvaddon.msi visual studio 2015 download
Sometimes, the error stems from corrupted Visual C++ Redistributables or the core Visual Studio 2015 shell. The rvaddon