When you have created a machine learning model, you will retrain that model when new data is available. But when I recently added a couple of images to the training set of my own ML.net model, I was faced with the following exception: System.InvalidOperationException: 'The asynchronous operation has not completed.' The application did work for weeks, so what has changed? And more importantly, how to fix this situation?

When trying to have an application work with an ONNX model I downloaded from the Microsoft Custom Vision portal, I got the following exception: TypeInitializationException: EntryPointNotFoundException: Unable to find an entry point named 'OrtGetApiBase' in DLL 'onnxruntime'. Searching for the error online did not yield any solutions. After solving the problem, I wanted to share the solution for anyone else running into the same exception.

With the introduction of the August Cumulative Update for SharePoint 2007 (KB973399) we encountered “System.NullReferenceException: Object reference not set to an instance of an object.” on all pages inheriting from MySitePublicWebPartPage.

On CodePlex you can find the “MOSS 2007 - C# Protocol Handler” project. When working with the code I discovered 2 issues which I both fixed. Both solutions are summarized here.

I have a clean install on the latest and greatest: Windows Server 2008, SQL Server 2008 and MOSS 2007 SP1 with all updates. Everything works fine, except the search crawl gave Access Denied errors on http://mysite and sps3://mysite. This post explains how I fixed the problem.

Sometimes you have to split your code into different assemblies. For example when I created a custom Admin Page which inherits from WebAdminPageBase (Microsoft.SharePoint.ApplicationPages). The problem with Microsoft.SharePoint.ApplicationPages is that it's not deployed to the GAC. When compiling you will get the following message: “CS0122: 'foo.bar.x' is inaccessible due to its protection level” Now you have only one choice: make x public. Or maybe not?