If you face the error message “An error occurred while validating.
HRESULT = '8000000A'” while building Visual Studio setup project from command line in Visual Studio 2012 or above IDE environment, the reason is because the new IDEs do not support build outside the own process.
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You’ll need to configure the build to compile the entire solution first, and then invoke Visual Studio to create the setup package.
Let’s walk through creating a simple build definition to build a vdproj.
But there is a tweak which will help you to enable the same and you will now be allowed to build the MSI setup project from the command line itself.
The solution towards “An error occurred while validating.
HRESULT = '80004005'" error while building Setup Project(S) in Visual Studio 2008 where as project (A) included in the setup build successfully.
This error occures if something is wrong with references of the project(A)Follow steps below to troubleshoot.
While building my setup projects I got: An error occurred while validating.