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When you get an exception from the F# Compiler Service, it usually does not print any useful information. But you can look at the private fields of the exception and get some more useful things out of it...
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// Let's say that creating FsiEvaluator() fails with mysterious // error from the F# compiler service. We can catch the exception: let e = try new FSharp.Literate.FsiEvaluator(); failwith "!" with e -> e // Get the InnerException, which is the actual error from the compiler let ae = e.InnerException // And get the values of the private fields! let opts = Reflection.BindingFlags.NonPublic|||Reflection.BindingFlags.Instance [ for p in ae.GetType().GetFields(opts) -> p.Name, p.GetValue(ae) ] // This might give you some more useful information about the // error (e.g. for `FileNameNotResolved`, you actually get the file name..)
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f# compiler service
exceptions
f# compiler service
exceptions
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