{"action":"opened","issue":{"url":"https://api.github.com/repos/aspnet/Blazor/issues/992","repository_url":"https://api.github.com/repos/aspnet/Blazor","labels_url":"https://api.github.com/repos/aspnet/Blazor/issues/992/labels{/name}","comments_url":"https://api.github.com/repos/aspnet/Blazor/issues/992/comments","events_url":"https://api.github.com/repos/aspnet/Blazor/issues/992/events","html_url":"https://github.com/aspnet/Blazor/issues/992","id":332260739,"node_id":"MDU6SXNzdWUzMzIyNjA3Mzk=","number":992,"title":"'Router' cannot find any component with a route for '/' with 0.4.0","user":{"login":"gpeipman","id":147714,"node_id":"MDQ6VXNlcjE0NzcxNA==","avatar_url":"https://avatars3.githubusercontent.com/u/147714?v=4","gravatar_id":"","url":"https://api.github.com/users/gpeipman","html_url":"https://github.com/gpeipman","followers_url":"https://api.github.com/users/gpeipman/followers","following_url":"https://api.github.com/users/gpeipman/following{/other_user}","gists_url":"https://api.github.com/users/gpeipman/gists{/gist_id}","starred_url":"https://api.github.com/users/gpeipman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gpeipman/subscriptions","organizations_url":"https://api.github.com/users/gpeipman/orgs","repos_url":"https://api.github.com/users/gpeipman/repos","events_url":"https://api.github.com/users/gpeipman/events{/privacy}","received_events_url":"https://api.github.com/users/gpeipman/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-06-14T05:54:57Z","updated_at":"2018-06-14T05:54:57Z","closed_at":null,"author_association":"NONE","body":"Hi,\r\nI'm trying to upgrade my [Blazor demo application](https://github.com/gpeipman/BlazorDemo) to 0.4.0. It uses code-behind for Blazor pages and it works fine with 0.3.0. When trying to run it on 0.4.0 I get the following error to browser console: Error: System.InvalidOperationException: 'Router' cannot find any component with a route for '/'.\r\n\r\nI added full stack trace shown in browser as formatting got lost in GitHub textbox: \r\n[blazor-exception-trace.txt](https://github.com/aspnet/Blazor/files/2100963/blazor-exception-trace.txt)\r\n\r\nAre there any additional steps for upgrading besides ones given at blog post here: https://blogs.msdn.microsoft.com/webdev/2018/06/07/blazor-0-4-0-experimental-release-now-available/ ?\r\n"}}
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