Migrating Azure Function App From In-Process model to Isolated-Worker model and .NET8

Question

After I migrated my azure function app to isolated-worker model and .net8, I deployed it to the azure and I started to get the following runtime error: Microsoft.Azure.WebJobs.Script: Error configuring services in an external startup class.: Could not load file or assembly 'System.ComponentModel, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.

Previously the func app used .NET6 and In-process model.

Also this issue doesn't exist locally.

Here is a snapshot of my csproj.

Note that I added an explicit reference of the pckg System.ComponentModel to my csproj file as you can see in the screenshot.

Any ideas what might be the root cause for this issue ?

Answer 1

Actually i got it resolved when migrating from In process to Isolated. You need to go to Visual Studio --> Tool --> Options --> Project & Solutions --> Azure functions --> Check for updates.

But when upgrading .net 6 to .net 8 while still being in In-Process mode of Azure function, i get the same error.