C# Isogram. The code compiles and pass test locally but fails online

Exercism Bugs & Feature Requests
1

My solution for C# Isogram problem compiles locally. All tests are green.
However on the server it fails.

The code:

using System.Text.RegularExpressions;

public static partial class Isogram
{
    public static bool IsIsogram(string word) => !RepeatingLetterPattern().IsMatch(word);

    [GeneratedRegex(@"(\p{L}).*\1", RegexOptions.IgnoreCase, "en")]
    private static partial Regex RepeatingLetterPattern();
}
2

How many tests pass locally? Are you running them all or just one?

What is the test failure message and test code run?

3

Compile errors online.

We received the following error when we ran your code:

Isogram.cs(8,34): error CS8795: Partial method 'Isogram.RepeatingLetterPattern()' must have an implementation part because it has accessibility modifiers.

All tests passed locally.

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4

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Locally compile fine. Online fails. I’ve marked the error point.

5

Based on the following, removing private on that line may help.

6

No this is a different issue, where GeneratedRegex does not work in the test runner. I still have to figure out how to solve this.

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