2dust/v2rayN · error · DirectoryNotFoundException

Source directory not found: {dir.FullName}

Error message

Source directory not found: {dir.FullName}

What it means

Thrown by FileUtils.CopyDirectory when the DirectoryInfo built from sourceDir does not exist on disk. It is a hard precondition check before any file/directory enumeration and copy.

Source

Thrown at v2rayN/ServiceLib/Common/FileUtils.cs:166

            ZipFile.CreateFromDirectory(sourceDirectoryName, destinationArchiveFileName, CompressionLevel.SmallestSize, true);
        }
        catch (Exception ex)
        {
            Logging.SaveLog(_tag, ex);
            return false;
        }
        return true;
    }

    public static void CopyDirectory(string sourceDir, string destinationDir, bool recursive, bool overwrite, string? ignoredName = null)
    {
        // Get information about the source directory
        var dir = new DirectoryInfo(sourceDir);

        // Check if the source directory exists
        if (!dir.Exists)
        {
            throw new DirectoryNotFoundException($"Source directory not found: {dir.FullName}");
        }

        // Cache directories before we start copying
        var dirs = dir.GetDirectories();

        // Create the destination directory
        _ = Directory.CreateDirectory(destinationDir);

        // Get the files in the source directory and copy to the destination directory
        foreach (var file in dir.GetFiles())
        {
            if (ignoredName.IsNotEmpty() && file.Name.Contains(ignoredName))
            {
                continue;
            }
            if (file.Extension == file.Name)
            {
                continue;

View on GitHub (pinned to e01717d832)

Solutions

1. Verify sourceDir exists and is a directory before calling CopyDirectory (Directory.Exists).
2. Log/expand the absolute path (Path.GetFullPath) so typos and bad env-var expansion are visible.
3. If the source may be optional, branch on Directory.Exists instead of letting it throw.
4. For network/removable sources, confirm the mount/share is available first.

Example fix

// before
FileUtils.CopyDirectory(maybeMissingPath, dest, true, true);

// after
if (!Directory.Exists(maybeMissingPath))
{
    throw new DirectoryNotFoundException($"Backup source not found: {Path.GetFullPath(maybeMissingPath)}");
}
FileUtils.CopyDirectory(maybeMissingPath, dest, true, true);

var full = Path.GetFullPath(sourceDir);
if (!Directory.Exists(full))
    throw new DirectoryNotFoundException($"Source directory not found: {full}");
FileUtils.CopyDirectory(full, destinationDir, recursive, overwrite, ignoredName);

static bool IsExistingDirectory(string path) => !string.IsNullOrWhiteSpace(path) && Directory.Exists(path);

try
{
    FileUtils.CopyDirectory(sourceDir, destinationDir, true, true);
}
catch (DirectoryNotFoundException ex)
{
    // source path missing/typo; check config and mount state
    _log?.Error(ex.Message);
}

When it happens

Trigger: CopyDirectory(sourceDir, ...) is called with a path that does not resolve to an existing directory; dir.Exists is false.

Common situations: User-configured source path is wrong or relative to an unexpected working directory; the directory was deleted/renamed between config and call; a removable/network drive is unmounted; path contains typos or environment variables that expanded to nothing.

Related errors

• SOCKS5 address type {AddressType} not supported.
• Failed to build UDP request packet.
• webdav parameter error or null

AI-assisted analysis of 2dust/v2rayN@e01717d832 (2026-08-13). Data as JSON: /api/errors/d0ea08296a9bc6cd. Report an issue: GitHub.