LykosAI/StabilityMatrix · warning · DataValidationException

Name is required

Error message

Name is required

What it means

The 'Create Extension Pack' dialog's Name field validator throws DataValidationException('Name is required') when the entered pack name is null or whitespace. It guarantees every extension pack gets a non-empty identifier before creation.

Solutions

1. Type a non-empty name for the extension pack before confirming.
2. If scripting, ensure the name argument passed to the dialog is trimmed and non-empty.

Example fix

// before
if (string.IsNullOrWhiteSpace(text)) throw new DataValidationException("Name is required");
// after
var name = text?.Trim();
if (string.IsNullOrEmpty(name)) throw new DataValidationException("Name is required");

var name = promptText?.Trim();
if (string.IsNullOrEmpty(name)) return; // do not submit

bool HasName(string? s) => !string.IsNullOrWhiteSpace(s);

try { await ShowCreatePackDialog(); }
catch (DataValidationException ex) { SetFieldError(ex.Message); }

When it happens

Trigger: Confirming the Pack Name text-entry dialog with an empty or whitespace-only Name field.

Common situations: User clicks OK immediately after the dialog opens without typing a name; clipboard paste of whitespace.

Understand the failure class

Background: "must not be empty", "cannot be empty" — required-field validation errors across open-source libraries — this error's family across 41 libraries.

Related errors

• File name is required
• URL is required
• Invalid URL format
• Pack already exists
• Width is required

AI-assisted analysis of LykosAI/StabilityMatrix@af93d6ef57 (2026-09-12). Data as JSON: /api/errors/1f05009ee0e02bca. Report an issue: GitHub.

Appendix: source

Thrown at StabilityMatrix.Avalonia/ViewModels/PackageManager/PackageExtensionBrowserViewModel.cs:841

        foreach (var item in SelectedInstalledItems.ToImmutableArray())
            item.IsSelected = false;

        foreach (var item in SelectedExtensionPackExtensions.ToImmutableArray())
            item.IsSelected = false;
    }

    private (BetterContentDialog dialog, TextBoxField nameField) GetNameEntryDialog()
    {
        var textFields = new TextBoxField[]
        {
            new()
            {
                Label = "Name",
                Validator = text =>
                {
                    if (string.IsNullOrWhiteSpace(text))
                        throw new DataValidationException("Name is required");

                    if (ExtensionPacks.Any(pack => pack.Name == text))
                        throw new DataValidationException("Pack already exists");
                },
            },
        };

        return (DialogHelper.CreateTextEntryDialog("Pack Name", "", textFields), textFields[0]);
    }

    private async Task<bool> BeforeInstallCheck()
    {
        if (
            !settingsManager.Settings.SeenTeachingTips.Contains(
                Core.Models.Settings.TeachingTip.PackageExtensionsInstallNotice
            )
        )
        {

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