Published .Net Core App Warns to Install .Net Core but it's Already Installed

Question

I made a WPF and Console application for someone to use on their private server which I can't have access to. I used Visual Studio 2019's built-in "Publishing Wizard" to create Framework Dependant single-file apps. When the person opened the WPF app they were greeted with the standard warning:

They clicked yes and to my understanding, they installed .Net Core 3.1 which is what the applications target.

After they restarted the computer they got the exact same warning again. I wasn't sure what was going on so I repackaged the apps as self-contained since the installed version of .Net Core was the same as what my applications were targeting.

That seemed to work for a little bit. We ran into some unrelated issues that I had to fix in the code on my end and then I re-published the projects and sent them out.

They tried to use the WPF application and they got the install warning again.

Now no matter what combination of options I pick in the "Publish Wizard" they keep getting the warning.

I'm not sure what to do.

Here's a picture of my publish settings

Answer 1

In my case I had the same issue, and the problem was that I was not deploying the file "MY_PROGRAM_NAME.runtimeconfig.json". After copying this file, which is present in the build output, the application is launched without problems.

Answer 2

Turns out the issue was the fact that the applications were targeting win-x86 and the user only had access to 64-bit runtimes of .Net Core.

For some reason, I thought it would be able to handle a 32-bit version even if it was running 64-bit runtimes.

I guess live and learn.