If you are getting a "VSTO general installer error" with an error code of 0x8007007E while trying to install A VSTO Office add-in a possible reason is absence of the VSTO runtime.
Download the VSTO Runtime here: http://go.microsoft.com/fwlink/?LinkId=140384
Obviously, you need to make sure your deployment VSTO installer detects/installs the VSTO Runtime before trying to install the add-in or you may have this issue popping up here and there throughout your installation base.
Download the VSTO Runtime here: http://go.microsoft.com/fwlink/?LinkId=140384
Obviously, you need to make sure your deployment VSTO installer detects/installs the VSTO Runtime before trying to install the add-in or you may have this issue popping up here and there throughout your installation base.
we have made vsto components for 2010 as a pre requisite , but it is not installing vsto components as the part of our addin installation
ReplyDeleteHi Venkat,
ReplyDeletethis is a bug with certain VS versions/setups. Basically you need to rebuild your VSTOR bootstrapper by following the instructions in the 2014 update section on this blog page: https://blogs.msdn.microsoft.com/vsto/2012/12/21/creating-a-bootstrapper-package-for-an-office-2013-vsto-add-in-with-visual-studio-2012/
This fixed it for me on Visual Studio 2015 and the ClickOnce installer for my Office add-in now automatically downloads VSTOR from Microsoft and installs it before the add-in itself is installed.
Good luck!
Alex