SOLVED: System.Drawing .NETCore on Mac, GDIPlus Exception

Just caught a GDI+ error running System.Drawing on a Mac? Maybe I got what you need here, to solve it in 5 secs.


If you are trying to generate thumbnails on .NETCore, you probably have come across of the porting of the System.Drawing namespace into mono.

If you haven't, check it out. It's a fantastic article about the several options for image processing on .NET Core that has some limitations.


I got the whole thing up and running in debug. But when I went for our dotnet run, I got the following crash:


After googling a bit, I found out that macs have a brew package for the GDI+ good to go.

And it works like a charm!
Hope this tiphelps you too, and saves you some minutes.

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My name is Hudson Mendes (@hudsonmendes), I’m a 36 years old coder, husband, father and a Machine Learning Engineer.

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