Tag: ASPNETCore

Asp.NET Core is, well, the vNext of .NET. This category describes my adventures with the exciting new generation – wait, not only generation, but a PARADIGM – of Microsoft’s CLR that does what Java was supposed to do, and does it well.

.NET Core fundamentals in one picture.
.NET Core fundamentals in one picture.

According to Microsoft, ASP.NET Core is the open-source version of ASP.NET, that runs on macOS, Linux, and Windows. ASP.NET Core was first released in 2016 and is a re-design of earlier Windows-only versions of ASP.NET. With ASP.NET Core, you can:

  • Build web apps and services, IoT apps, and mobile backends.
  • Use your favorite development tools on Windows, macOS, and Linux.
  • Deploy to the cloud or on-premises.
  • Run on .NET Core or .NET Framework.

So, in short, ASP.NET Core is a cross-platform, high-performance, open-source framework for building modern, cloud-based, Internet-connected applications.

GitHub thread about the error - and long and winding discussion about the topic.

How to resolve build failing with .NET Core 3 and Microsoft.AspNetCore.Mvc.Versioning

Building a proof-of-concept on .NET Core 3.0 preview 7 I ran into issues when developing web APIs. This release is production-ready (according to Microsoft -see below), but every now and then you run into really unintuitive and sometimes surprising issues. Go LiveNET Core 3.0 Preview 7 is supported by Microsoft and can be used in production. We strongly recommend that you test your app running on Preview 7 before deploying Preview 7 into production. If you find an issue with .NET Core 3.0, please file…Continue reading How to resolve build failing with .NET Core 3 and Microsoft.AspNetCore.Mvc.Versioning

.NET Core fundamentals in one picture.

How to fix Microsoft.AspNetCore.Mvc.TagHelpers not being rendered!

Ha – another one, that ended up being a simple fix, but since nobody actually explains it well, took me an hour to figure out. This post ended up being another example of my “I’m going to document every single fix, that took me more than 10 minutes to figure out, since that’ll help me (and others) the next time the same issue arises.” blogging strategy. Snappy name, right? Never was my strongest suit! Anyway, I ended up banging my head to the wall. Hopefully…Continue reading How to fix Microsoft.AspNetCore.Mvc.TagHelpers not being rendered!

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How to get current user in ASP.NET Core?

This post describes how to get the currently logged in user using ASP.NET Core. This is compared with how it’s done in .NET Framework. Background In .NET Core, a lot of things are done a bit differently. That’s what I’ve been learning building more and more stuff with it, instead of good old .NET Framework. The learning curve is definitely there, but it’s not that bad – most of the things work in a similar fashion, but a huge number of details are different. In…Continue reading How to get current user in ASP.NET Core?

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EntityFramework Core – Update-Database error “The EntityFramework package is not installed”

Another weird, but simple issue I ran into when building a simple .NET Core application. I was just minding my own business, crafting since bits of code into something remotely functional, while I ran into an issue. While trying to apply my changes to the database using .NET Core Entity Framework, executing Update-Database simply failed with the following error: The EntityFramework package is not installed You might also encounter this version of the error: The EntityFramework package is not installed on project [projectname here]. This…Continue reading EntityFramework Core – Update-Database error “The EntityFramework package is not installed”

ASP.NET Core web app home page

Resolving the Version conflicts for a downgraded .NET Core 2.1/2.2 web app project

I ran into compatibility issues with .NET Core 2.2 on my Azure Functions projects, so I downgraded my whole solution (an Azure Functions project, a helpers library and a web application project) to 2.1, and got rid of that particular nuisance. This introduced a few new issues, though – namely, I started getting this error whenever trying to restore nuget packages or build the project: NU1107 Version conflict detected for Microsoft.AspNetCore.Razor.Language. Install/reference Microsoft.AspNetCore.Razor.Language 2.2.0 directly to project [projectname] to resolve this issue. [projectname] -> Microsoft.VisualStudio.Web.CodeGeneration.Design…Continue reading Resolving the Version conflicts for a downgraded .NET Core 2.1/2.2 web app project

Let's fix all the problems!

Fixing “An assembly specified in the application dependencies manifest [projectname].deps.json was not found”

This post describes one nobrainerish fix to the error “An assembly specified in the application dependencies manifest [projectname].deps.json was not found.” I ran into this while running Update-Database for my ASP.NET Core web project, that’s using EntityFrameworkCore 2.1.1. I hadn’t seen this one before, but the error was quite interesting: Error: An assembly specified in the application dependencies manifest (Koskila.[projectname].AzureFunctions.deps.json) was not found: package: ‘Koskila.[projectname].AzureFunctions’, version: ‘1.0.0’ path: ‘Koskila.[projectname].AzureFunctions.dll’ Well that’s a weird one coming from an update-database command! Posts Related to “Fixing “An assembly…Continue reading Fixing “An assembly specified in the application dependencies manifest [projectname].deps.json was not found”

Meanwhile on Google Plus...

Google Plus is shutting down – fix your .NET OAuth flow!

Google is shutting down their Facebook killer, Google+. While I’m sure there’s at least 10 end users that are sad to see the ill-fated not-that-social-medium go, the implications for Software Developers actually could be far more far-reaching. A lot of implementations of Google’s OAuth seem to rely on Google Plus’s APIs to get gather information about the user. When Google Plus goes down, so will the APIs. Their apparently unsafe implementation seems to be a major reason Google’s hastening the shutdown anyway. This means that…Continue reading Google Plus is shutting down – fix your .NET OAuth flow!