LykosAI/StabilityMatrix · error · FileNotFoundException

File does not exist

Error message

File does not exist

What it means

LoadImageMetadata loads PNG/image metadata for a dropped or opened file path, but first requires the path be non-null and the file exist. If the FilePath is null or the file is gone, it throws FileNotFoundException with the path as FileName so the caller can report a missing file.

Solutions

1. Verify the file exists before calling: File.Exists(path) / path.Exists, and show a 'file not found' dialog otherwise.
2. Re-pick/re-drag the file — if it was deleted or moved, restore it or browse to its new location.
3. For drop scenarios, canonicalize the dropped payload to a real filesystem path and bail out early if it isn't one.

Example fix

// before
vm.LoadImageMetadata(path); // FileNotFoundException if missing
// after
if (path is not { Exists: true })
{
    Dialogs.ShowDialog("File not found", $"{path?.FullPath} no longer exists.");
    return;
}
vm.LoadImageMetadata(path);

if (path is not { Exists: true })
{
    Dialogs.ShowDialog("File not found", $"'{path?.FullPath}' does not exist.");
    return;
}

bool Loadable(FilePath? p) => p is { Exists: true };

try { vm.LoadImageMetadata(path); }
catch (FileNotFoundException ex) { Dialogs.ShowDialog("File not found", ex.FileName ?? "unknown path"); }

When it happens

Trigger: Calling LoadImageMetadata(path) (via Drop or AddTabFromFileAsync) with a null path, a path pointing to a deleted/renamed file, a file on unmounted removable media, or a stale path from a previous session.

Common situations: Dragging a file that was deleted before drop completed; opening an image from a temp folder that was cleaned; files on an external drive/network share that disconnected; OS passing a virtual/non-filesystem drop payload.

Understand the failure class

Background: "File not found" and ENOENT errors: why libraries can't find a file that should exist — this error's family across 50 libraries.

Related errors

• File ( ) was not found
• Model file no longer exists
• Could not find file
• Font NotoSansJP not found
• DockControl not found

AI-assisted analysis of LykosAI/StabilityMatrix@af93d6ef57 (2026-09-12). Data as JSON: /api/errors/18862a994a3b3dd4. Report an issue: GitHub.

Appendix: source

Thrown at StabilityMatrix.Avalonia/ViewModels/Base/InferenceTabViewModelBase.cs:181

        if (disposing)
        {
            ((IPersistentViewProvider)this).AttachedPersistentView = null;
        }
    }

    /// <summary>
    /// Loads image and metadata from a file path
    /// </summary>
    /// <remarks>This is safe to call from non-UI threads</remarks>
    /// <param name="filePath">File path</param>
    public void LoadImageMetadata(FilePath? filePath)
    {
        Logger.Info("Loading image metadata from '{Path}'", filePath?.FullPath);

        if (filePath is not { Exists: true })
        {
            throw new FileNotFoundException("File does not exist", filePath?.FullPath);
        }

        var metadata = ImageMetadata.GetAllFileMetadata(filePath);

        LoadImageMetadata(filePath.FullPath, metadata);
    }

    /// <summary>
    /// Loads image and metadata from a LocalImageFile
    /// </summary>
    /// <param name="localImageFile">LocalImageFile</param>
    public void LoadImageMetadata(LocalImageFile localImageFile)
    {
        Logger.Info("Loading image metadata from LocalImageFile at '{Path}'", localImageFile.AbsolutePath);

        var metadata = localImageFile.ReadMetadata();

        LoadImageMetadata(localImageFile.AbsolutePath, metadata);

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