Could not find file '..\bin\Debug\TestProj.UnitTests.xunit.runner.json'

I get the below exception when debugging an xunit test using .net MVC 5, .net framework version 4.6.2 and visual studio 2019.

**

System.IO.FileNotFoundException HResult=0x80070002 Message=Could not find file 'Could not find file '..\bin\Debug\TestProj.UnitTests.xunit.runner.json'. Source=mscorlib StackTrace: at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) This exception was originally thrown at this call stack: System.IO.__Error.WinIOError(int, string)

**

Please see the below images.

for me adding this file was all it took `{projectname}.

and in the file content look like this

{
    "$schema": "https://xunit.net/schema/current/xunit.runner.schema.json"
}

also don't forget to set the file to copy on build.

based on documentation found here