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Rider uses mono32 to execute unit tests instead of mono64 macOS

I need to run unit test made in .NET Framework version 4.5. I am running this system:

  • OS: macOS Catalina
  • Version: 10.15.5

Because I have a macOS system I installed Mono on the official website. The version I installed is: 6.10.0.104. It supports mono32 as well as mono64, but for some odd reason my IDE (Rider) is using mono32 to run tests. I am just wondering how I can force mono64 to be used?

The error that is thrown is:

Exit code is 1 (Error: --arch=32 Failed to switch to '/Library/Frameworks/Mono.framework/Versions/Current/bin/mono32'.

The version of Rider that I use is: JetBrains Rider 2020.1.3 Build #RD-201.7846.1.

I have found a similar question here, but no one answered that question unfortunately.

Thank you for helping me in advance!

Solution

  • I changed "Default platform architecture" to "x64" in Preferences > Unit Testing and that fixed the issue for me.