WPF ClickOnce missed references

Question

I have a WPF app that works with local SQLite and Entity Framework Core. I want to distribute my app using ClickOnce. Everything works fine when I run it using Visual Studio 2017. But app had a crash on a start when I used ClickOnce. The crash was so early so I couldn't even log the exception. After some time I found that in publish folder some dlls were missed. For example System.Runtime. All references are NuGet packages. Then I found that despite of I have a reference to the dlls in my project ClickOnce application files list doesn't contains it. The only solution I have found for now is to add missed dlls as files in root of my project and set build action to Content. In ClickOnce application file dialog I set publish status to Include. It works now but it looks like not the best way to do it. The question is why they are missed in the first place. More likely I missed something or I am not understand the root of the problem. UPD: You can find an example code here. It works from V…

Accepted Answer

There are two ways solving solve this.

At first, you have to go Properties → Publish → Application Files, and at this place, make your DLL files include in your project

But if it does not work, go to References and make the DLL file CopyLocal = False. You add a DLL file like Existing Item in your project and make them Copy Always.

It will work correctly.

But for your sample I watch this and I solved it. Look at this image:

You have four DLL files. You need do this for them:

```
System.Diagnostics.Tracing.dll
System.Reflection.dll
System.Runtime.dll
System.Runtime.Extensions.dll
```

At first go to your reference and make them Copy Local False:

Then go to the path of each DLL file and add them like Existing Item, and then make all of them Copy To Output Directory CopyAlways

Then Publish it and run it like in this picture. I run it from publish file and it works.

WPF ClickOnce missed references

Solution

Problem