The issue here is with your string containing the path to the file:
"C:\\Users\\LK\\source\repos\dsd-ica-perf\\src\\et.ure.ica.Perf\\PerfTest.cs";
Notice that you've escaped
some backslashes, but not others. You need to escape all backslashes otherwise C# will convert those into characters (ie.
\r
gets converted into a carriage-return):
"C:\\Users\\LK\\source\\repos\\dsd-ica-perf\\src\\et.ure.ica.Perf\\PerfTest.cs";
@"C:\Users\LK\source\repos\dsd-ica-perf\src\et.ure.ica.Perf\PerfTest.cs";