Hi Henry,
Thanks for the information. Yes, you are correct that your issue is related to the extensions are not visiable to x64 bit build machines. And with the blog you offered above, I can run NUnit tests successfully on the 64 bit build machine. And please show me one simple NUnit tests you would like to run, and also share me the build error messages you got.
Thanks.
Vicky Song [MSFT]
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