似乎我们需要等待Resharper的更新（我遇到了完全相同的问题错误）。

It seems we need to wait for a Resharper update (I've encountered exactly the same error).

与此同时，您可以从Visual Studio运行程序运行测试-似乎工作正常。

Meanwhile, you can run your tests from the Visual Studio runner - it seems to be working fine.

编辑：

您还可以尝试安装Resharper 2017.2的早期版本（ https://www.jetbrains.com/resharper/eap/ ），如果您感到冒险；）我刚刚检查过，它可以正常工作罚款（自EAP 2017.2 12起）使用nUnit，xUnit和MSTest测试。

You can also try installing the early version of the Resharper 2017.2 (https://www.jetbrains.com/resharper/eap/) if you feel adventurous ;) I've just checked and it works fine (as of EAP 2017.2 12) with nUnit, xUnit and MSTest tests.