When my Azure Function doesn't build

How to fix “System.IO.FileSystem: Could not find a part of the path \AppData\Local\AzureFunctionsTools\Releases\3.17.0\workers. Value cannot be null. (Parameter ‘provider’)” when running Azure Functions locally?

Well, that title is a mouthful. But it’s the topic for today, so what can you do? That said, this article should be pretty topical, as the issue started popping up only a few days ago. Chances are it’ll be patched soon enough, but in the meantime, it’s always useful to document the fix! Problem When running or debugging Azure Functions locally, your runtime just blurts our this error and fails to compile your functions: [2021-01-11T10:28:11.495Z] A host error has occurred during startup operation ‘0d00defa-b8bd-4fb8-9794-b0e5950a4c38’.…Continue reading How to fix “System.IO.FileSystem: Could not find a part of the path \AppData\Local\AzureFunctionsTools\Releases\3.17.0\workers. Value cannot be null. (Parameter ‘provider’)” when running Azure Functions locally?

Have you tried turning it off and on again?

How to nuke the Identity Cache in Visual Studio?

This article explains one easy workaround to a lot of Visual Studio authentication issues. Personally, it’s helped me multiple times when Cloud Explorer has gotten into a weird authentication loop or Visual Studio stops seeing my MSDN subscription. And it also helps you clean up any old and unused credentials – such as the ones you only used once in 2018 to log into a customer’s Azure environment to debug an issue they had with their AppInsights extension on an app service (and that ended…Continue reading How to nuke the Identity Cache in Visual Studio?

What in tarnation (and tarnation accessories)

Fixing unexpected Microsoft.AspNetCore package errors after a dependency update

This was a fun one! Suddenly, while running or debugging my ASP.NET Core 3.1 application, I started getting errors about missing assemblies. These dll files were not required a minute earlier – nor did requiring them really make much sense in my mind – but there was a nonsensical, easy fix, so in the end it was all good! But let’s go through this thing in order. What was the problem now? Problem So, this was the error I was running into, whenever I ran…Continue reading Fixing unexpected Microsoft.AspNetCore package errors after a dependency update