Category: Tech

This category contains all of the non-rants. And some tech-related rants, I guess. It’s difficult to categorize your content, you know?

Entity Framework Core logo

How to fix “System.InvalidOperationException: The property ‘ItemBody.AdditionalData’ could not be mapped because it is of type ‘IDictionary’, which is not a supported primitive type or a valid entity type. Either explicitly map this property, or ignore it using the ‘[NotMapped]’ attribute or by using ‘EntityTypeBuilder.Ignore’ in ‘OnModelCreating’.” in .NET 7 and Entity Framework?

Oof. What even is this title? Descriptive – sure, maybe – but also kinda long. Ah, okay. This article explains how to map complex data types to a SQL database when using Entity Framework. This time, I’m using Fluent API to do this. In my case, I just needed to…Continue reading How to fix “System.InvalidOperationException: The property ‘ItemBody.AdditionalData’ could not be mapped because it is of type ‘IDictionary’, which is not a supported primitive type or a valid entity type. Either explicitly map this property, or ignore it using the ‘[NotMapped]’ attribute or by using ‘EntityTypeBuilder.Ignore’ in ‘OnModelCreating’.” in .NET 7 and Entity Framework?

Azure Active Directory (Azure AD)

Solving “AADSTS90097: An error has occurred during admin consent processing.” issues in your app

This article explains how to fix “AADSTS90097: An error has occurred during admin consent processing.” (or like the error message is actually worded – “occurred”, which to me looks like a typo, but at least makes this easier to google. I mean – bing. Those are both verbs now until…Continue reading Solving “AADSTS90097: An error has occurred during admin consent processing.” issues in your app

.NET MAUI

How to fix your MAUI Blazor app crashing on startup with “Failed to compare two elements in the array.” ?

This article explains how to fix your Blazor Hybrid MAUI application (built with Blazor Webassembly, using MAUI to build & publish for multiple different platforms like Windows, Android and iOS at once) not starting up, but throwing an unexpected error instead, an error message being somewhat along the lines of…Continue reading How to fix your MAUI Blazor app crashing on startup with “Failed to compare two elements in the array.” ?

.NET MAUI

How to solve “System.TypeInitializationException: ‘The type initializer for ‘WinRT.ActivationFactory`1’ threw an exception.'” in the MAUI application?

… or “How to bang your head on a wall for hours on end when developing a MAUI application?” 😂 This article explains how to fix a surprising error you might get when trying to run a MAUI app in Windows. For me, it was thrown when I was simply…Continue reading How to solve “System.TypeInitializationException: ‘The type initializer for ‘WinRT.ActivationFactory`1’ threw an exception.’” in the MAUI application?

.NET MAUI

How to fix “There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier…” after a Visual Studio update?

This article offers a stupid workaround for a cryptic and seemingly unrecoverable problem that manifests itself after a Visual Studio / .NET update and causes the following error to be thrown: “There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier ‘browser-wasm’.” Sorry, no real solution here –…Continue reading How to fix “There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier…” after a Visual Studio update?