WebView2 types exist in both Microsoft.Web.WebView2.Core and Microsoft.WinUI

I have a .NET 5 desktop app with WinUI 3 and these are some of the package references

I am getting this build error:

error CS0433: The type 'CoreWebView2NavigationStartingEventArgs' 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'

The following code is causing the issue, since the type CoreWebView2NavigationStartingEventArgs exists in both Microsoft.WinUI and Microsoft.Web.WebView2.Core:

private void AuthWebView_NavigationStarting(WebView2 sender, Microsoft.Web.WebView2.Core.CoreWebView2NavigationStartingEventArgs args)
{
    var destination = args.Uri;

    if (destination.StartsWith(this.Callback, StringComparison.OrdinalIgnoreCase))
    {
        args.Cancel = true;
        this.Result = new WebAuthenticationResult(destination);
        this.Hide();
    }
}

Will this be fixed in future versions? Is there any workaround for this error?

Explicitly installing the WebView2 package and specifying an alias for it does not work - any input would be appreciated. For now I will continue to use Microsoft.Graph in version 3.*

[dahovey]

I found a workaround for this! Based on this stackoverflow question here.

1. Add a PackageReference to Microsoft.Web.WebView2. In my case I chose version 1.0.864.35 because other packages I needed to reference, depended on that version.
2. Select the Microsoft.Web.WebView2 package in the Dependencies section of project.
3. Enter an alias, i.e. webivew2

After doing this the Dependencies and Packages nodes within project, show up with a yellow exclamation triangle, but the project builds without error and works.

[amadeo-alex]

The fact that this issue existed for so long without any traction is at best laughable. All while UWP Toolkit users are advised to move to the App SDK when encountering a registry bug which was marked as “won’t fix because use App SDK”…