I am trying to upgrade a vintage vb winform app to from framework 4.72 to .NET 8. I am using visual studio 2022 preview (latest version). I have reduced the number of errors I get in the build process from over 9000 to 1. This seems to be the most difficult one to solve. In the error window I get this message:

Error (active) ” & e_emb.Message) File: vbc Line 1

In my output window, amidst a sea of warnings the error appears as follows:

6>lanserverhaimDellDocVisual Studio BARDApp12nReviewer.vb(3821,13): warning CA1416: This call site is reachable on all platforms. …
6>VBC : MessageBox.Show(“The Message was not sent do to the following error : ” & e_emb.Message)
6>lanserverhaimDellDocBARDApp12nSRRemindDialog.vb(620,9): warning CA1416: …
6>lanserverhaimDellDocBARDApp12nReviewer.vb(3814,21): warning CA1416: …

While the output messages don’t appear to be in any particular order, I do eliminate the error if I exclude the reviewer.vb (a winform) from the project. My strategy now is to comment out portions of the code on that form until I find the culprit. I couldn’t find this specific problem on the web. Does anyone have an idea where I can find the error?