Visual Studio build Error 8000000A

Visual studio Mircrosoft stoped supporting Installer projects a long time ago but some of us still have solutions with installer projects. I am currently running Visual Studio 2015 and when I tried to build a solution containing a installer project I received this error for a while when using devenv on an automatic build.


The error appears when running the following command. When I build directly via visual studio there is no issues it can build. This problem only happens when running devenv via my build script.

“%vs2010%\devenv” “%projectdir%\MySolution.sln” /rebuild Release

The error

An error occurred while validating. HRESULT = ‘8000000A’


Adding the following command to the registry appears to work. Note: Windows update appears also to eat this so you have to reapply it.

REG ADD HKCU\SOFTWARE\Microsoft\VisualStudio\14.0_Config\MSBuild /t REG_DWORD /v EnableOutOfProcBuild /d 0 /f



There is a large question related to this on stack overflow the accepted answer did not help me but one of the other ones had the command that i used in it. An error occurred while validating. HRESULT = ‘8000000A’ if the command doesn’t help you try and check the main answer see if that will help.

About Linda Lawton

My name is Linda Lawton I have more than 20 years experience working as an application developer and a database expert. I have also been working with Google APIs since 2012 and I have been contributing to the Google .Net client library since 2013. In 2013 I became a a Google Developer Experts for Google Analytics.

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