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I am converting a VB .NET 4.7 project to .NET5. It uses the VB Power Pack version 10. However, when I try to look at the form which uses it, Visual Studio produces an error message saying:
Type 'System.Drawing.Printing.PrinterSettings' in Assembly 'System.Drawing.Common, Version=5.0.0.2, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' is not marked as serializable.
My program does not use serialization at all. I cannot remove the offending item as VS will not open the form design.
Is the Power Pack incompatible with .NET 5, and in that case, how can I print a window?
Hello,
A tell tale sign would be having a yellow explanation symbol next to Dependencies node in solution explorer which my guess is what would be seen adding this library to your .NET Core project.
Power Pack was never compiled to work with .NET Core and doubtful Microsoft will release a version for .NET Core.
@Karen Payne MVP I feared as much! Thanks.
@Karen Payne MVP This has raised a further problem: I am obviously going to have to remove the offending item from the form, at least until I've found a way round it. But Visual Studio won't let me do that, as it won't display the form until the error is resolved- see the screenshot below (I hope you can read it). And I can't resolve the error without displaying the form.
I could always try removing the item from the <form>.Designer.vb file, but as this is auto-generated it probably won't work and the message in the screenshot tells me not to do it. Any ideas?
To get rid of the item or items causing the issue, from the IDE menu, select project, Show all files, double click on the designer file, look for the problem lines, delete, save.
Even though the file is a auto-generated file the above will still work.
@Karen Payne MVP Thanks - that seems to have worked.