# ASP.NET Core MVC Quickstart and Sample App - Something Went Wrong

**URL:** <https://community.auth0.com/t/asp-net-core-mvc-quickstart-and-sample-app-something-went-wrong/79775>\
**Category:** Get Help\
**Tags:** login, auth0\
**Created:** [March 12, 2022, 9:09pm UTC](https://community.auth0.com/t/asp-net-core-mvc-quickstart-and-sample-app-something-went-wrong/79775 "2022-03-12T21:09:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bradykelly](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/bradykelly/32/35492_2.png) [@bradykelly](https://community.auth0.com/u/bradykelly)\
**Post date:** [March 12, 2022, 9:09pm UTC](https://community.auth0.com/t/asp-net-core-mvc-quickstart-and-sample-app-something-went-wrong/79775/1 "2022-03-12T21:09:37Z")

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Please include the following information in your post:

The SDK for [ASP.NET](http://ASP.NET) Core MVC  
Nuget package: Auth0.AspNetCore.Authentication 1.0.0  
.NET 5  
Downloaded the pre-configured sample app from this page: [Auth0 ASP.NET Core MVC SDK Quickstarts: Login](https://auth0.com/docs/quickstart/webapp/aspnet-core?download=true)

I don’t know if this is a bug or not, and it’s not a feature request. I followed the instructions on the page linked above to configure my Auth0 application and to download and run the sample app. When I click on the login button, my browser tries to go to “[https://dev-cl1b3tlp.us.auth0.com/login?state=hKFo2SA0S0tSeEVtTmRWRE43RHo4TTdrRnFTNk](https://dev-cl1b3tlp.us.auth0.com/login?state=hKFo2SA0S0tSeEVtTmRWRE43RHo4TTdrRnFTNk)…”, I get an Auth0 popup saying “Something went wrong. Please contact technical support”

If I look at Network activity in Firefox dev tools, I see a number of requests happening and all but one have an HTTP 200 result. The one exception is a 404, for the request: [https://dev-cl1b3tlp.us.auth0.com/user/ssodata](https://dev-cl1b3tlp.us.auth0.com/user/ssodata)

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**Author:** ![dan.woda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/dan.woda/32/18340_2.png) [@dan.woda](https://community.auth0.com/u/dan.woda)\
**Post date:** [March 14, 2022, 8:06pm UTC](https://community.auth0.com/t/asp-net-core-mvc-quickstart-and-sample-app-something-went-wrong/79775/3 "2022-03-14T20:06:32Z")

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Hi @bradykelly,

Can you please take a look at your Auth0 Dashboard logs and see if there is a more descriptive error?

Also, it’s probably not an issue with the ssodata request.

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**Author:** ![dan.woda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/dan.woda/32/18340_2.png) [@dan.woda](https://community.auth0.com/u/dan.woda)\
**Post date:** [May 25, 2022, 9:18pm UTC](https://community.auth0.com/t/asp-net-core-mvc-quickstart-and-sample-app-something-went-wrong/79775/4 "2022-05-25T21:18:38Z")

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