I'm using Umbraco 10.4.2

I am attempting to create a new section in the backoffice with a custom dashboard. I am able to create the section just fine. I have given myself permission to see it and it shows up across the top with the other sections. However, I can't get the dashboard to display. I get a 404 error.

All files are located within /App_Plugins/WebSubscriptions. The dashboard file itself just contains "hello world". Whenever I click on the section, Umbraco displays a red toast with a 404 error. I tried altering the proj file to contains this:

  <ItemGroup>
    <Content Include="App_Plugins\**">
        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </Content>
  </ItemGroup>

It had no effect.

Here is the package.manifest file:

    {
  "sections": [
    {
      "alias": "WebSubscriptions",
      "name": "Web Subscriptions"
    }
  ],
  "dashboards": [
    {
      "alias": "Web Subscriptions",
      "sections": [ "WebSubscriptions" ],
      "view": "/App_Plugins/WebSubscriptions/dashboard.cshtml"
    }
  ]
}

I continue to get a 404 error. I have tried adding a tilde, removing the first forward slash, nothing changes. It may be worth noting that I had to create the App_Plugins folder. Obviously the manifest file is being picked, as well as the lang file (no brackets). But it doesn't seem to want to pick up the view file. I have tried both html and cshtml. No difference.