stride3d/stride · error · ArgumentException

Name cannot be empty

Error message

Name cannot be empty

What it means

ValidateNameNotEmpty is ProfilingKey's shared name guard: it returns the name unchanged when it is non-null and not whitespace, otherwise throws ArgumentException('Name cannot be empty', nameof(name)). All ProfilingKey constructors route through it to keep profiling key names meaningful.

Solutions

1. Supply a non-empty descriptive name when constructing the ProfilingKey
2. Validate/normalize the name (trim, fallback default) before construction
3. Check why the source string is empty (missing config/constant) and fix the source

Example fix

// before
var key = new ProfilingKey(categoryName); // may be ""
// after
var key = new ProfilingKey(string.IsNullOrWhiteSpace(categoryName) ? "default" : categoryName);

if (string.IsNullOrWhiteSpace(name)) name = "default";
var key = new ProfilingKey(name);

bool isValidKeyName(string name) => !string.IsNullOrWhiteSpace(name);

try { key = new ProfilingKey(name); }
catch (ArgumentException) { key = new ProfilingKey("default"); }

When it happens

Trigger: new ProfilingKey(""), new ProfilingKey(parent, null), or any constructor receiving a whitespace-only name string.

Common situations: Names built by concatenation where parts are empty; configuration-driven profiling categories with missing values.

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

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AI-assisted analysis of stride3d/stride@96fad776d2 (2026-09-14). Data as JSON: /api/errors/b9e6e110c8a49256. Report an issue: GitHub.

Appendix: source

Thrown at sources/core/Stride.Core/Diagnostics/ProfilingKey.cs:82

    /// </summary>
    /// <value>The group.</value>
    public ProfilingKey? Parent { get; }

    /// <summary>
    /// Gets the children.
    /// </summary>
    /// <value>
    /// The children.
    /// </value>
    public List<ProfilingKey> Children { get; }

    public override string ToString()
    {
        return Name;
    }

    private static string ValidateNameNotEmpty(string name) =>
        !string.IsNullOrWhiteSpace(name) ? name : throw new ArgumentException("Name cannot be empty", nameof(name));
}

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