Code Review - {expression} printing

[jzabroski]

98f3b8b#r33569909

[jzabroski]

In my case, this was caused by a typo:

Map(m => m).Name("Whatever"); // I accidentally deleted the property accessor on the second 'm'

I suggest the code be:

var expr = ((LambdaExpression)exp).Body.ToString(); // somewhat risky, if this fails, the program blows up with confusing exception.  Question is, can this fail?
throw new InvalidOperationException( $"No members were found in expression '{expr}' for class {typeof(TClass)}." );