I have upgraded a C#/net microsoft graph application to use the latest versions of Microsoft.Graph (version 5.52.0) and Microsoft.Graph.Core (3.1.11).

Since then I had to change many references from “Microsoft.Graph” to “Microsoft.Graph.Models”. So far so good.

The problem is now: the type “ErrorDetail” is missing.

using Microsoft.Graph;
using grph = Microsoft.Graph;
using Microsoft.Graph.Models;
using grphMdls = Microsoft.Graph.Models;

....
public grph.ErrorDetail error = null;
....
public grphMdls.ErrorDetail error = null;
....

In VS I get the compile errors:

Error   CS0234  The type or namespace name 'ErrorDetail' does not exist in the namespace 'Microsoft.Graph'
Error   CS0234  The type or namespace name 'ErrorDetail' does not exist in the namespace 'Microsoft.Graph.Core'

Can anyone help me?

Thanks in advance
Peter

Changing the reference from “Microsoft.Graph” to “Microsoft.Graph.Models” produces the same result.