SkiaSharp Throws BadImageFormatException in Unit Tests

Sep 9, 2020  

I recently upgraded Visual Studio 2019, and I was puzzled as all tests which were using SkiaSharp would crash with a BadImagFormatException:

System.TypeInitializationException : The type initializer for 'SkiaSharp.SKImageInfo' threw an exception.
    ---- System.BadImageFormatException : An attempt was made to load a program with an incorrect format.

My build settings were all set to Any CPU and I did not tick the checkbox Prefer 32-bit. I somehow suspected that the tests were given an x86 library, so I tried adding following to the *.csproj file:


as suggested in this SkiaSharp issue on the topic. It did not help.

Select the correct CPU architecture for your Visual Studio Tests

Microsoft’s article on running tests as a 64-bit process pointed me to the correct solution. Somehow, the default setting I was using for the processor architecture, when running my tests, changed after updating Visual Studio.

Selecting the Processor Architecture for AnyCPU Projects

Setting the Processor Architecture for AnyCPU Projects back to Auto solved the issue.