CoreWebView2WebErrorStatus exists in both Microsoft.Web.WebView2.Core and Microsoft.WinUI

[aureole82]

Describe the bug

I get this error message for any usage of the CoreWebView2WebErrorStatus enum:
The type 'CoreWebView2WebErrorStatus' exists in both 'Microsoft.Web.WebView2.Core, Version=1.0.864.35, Culture=neutral, PublicKeyToken=2a8ab48044d2601e' and 'Microsoft.WinUI, Version=3.0.0.0, Culture=neutral, PublicKeyToken=de31ebe4ad15742b'

It looks like Microsoft.EntityFrameworkCore.SqlServer has an indirect dependency on Microsoft.Web.WebView2 where the WinUI assembly copied from and now the same type exists twice:

Could you help me to fingerpoint to the correct originator? Thanks alot!

To Reproduce

1. Create new project by "Template Studio for WinUI", in addition to defaults
   • Add WebView and
   • Select "Self-Contained", deselect "MSIX Packaging".
2. Add EntityFrameworkCore + SQL Server database provider to the Core project.
   PM> Install-Package Microsoft.EntityFrameworkCore.SqlServer
3. Rebuild solution.

Additional context

It worked with the wizard 5.2.1 who used .NET 6.
I'm pretty sure this is a duplicate of microsoft/microsoft-ui-xaml#5689.

Applies to the following platforms:

• WinUI
• WPF
• UWP

About your setup

• Visual Studio Version: 5.3
• Template Studio Wizard Version: 17.5.0
• Windows Build: 22H2 19045.2604

[mikebattista]

Yes this is a duplicate of the issue you linked. It needs to be fixed at the platform level.

https://task.ms/39554408 is the corresponding internal bug tracking the issue.

[mikebattista]

See #4632 (reply in thread) for a potential workaround.

[aureole82]

@mikebattista

I think

to install the lower version of Microsoft.EntityFrameworkCore.SqlServer that doesn't have Azure in its dependency.

is not possible within a multi project solution where other clients also depend on the latest SQL Server access.