Tyrrrz/DiscordChatExporter · error · DiscordChatExporterException

Request to '{url}' failed: not found.

Error message

Request to '{url}' failed: not found.

What it means

Thrown as DiscordChatExporterException (non-fatal) from GetJsonResponseAsync when a request returns 404 Not Found. The requested resource (channel, guild, user, message) does not exist or is not visible to the authenticated identity. The url is interpolated into the message for diagnosis.

Source

Thrown at DiscordChatExporter.Core/Discord/DiscordClient.cs:154

        CancellationToken cancellationToken = default
    )
    {
        using var response = await GetResponseAsync(url, cancellationToken);

        if (!response.IsSuccessStatusCode)
        {
            throw response.StatusCode switch
            {
                HttpStatusCode.Unauthorized => throw new DiscordChatExporterException(
                    "Authentication token is invalid.",
                    true
                ),

                HttpStatusCode.Forbidden => throw new DiscordChatExporterException(
                    $"Request to '{url}' failed: forbidden."
                ),

                HttpStatusCode.NotFound => throw new DiscordChatExporterException(
                    $"Request to '{url}' failed: not found."
                ),

                _ => throw new DiscordChatExporterException(
                    $"""
                    Request to '{url}' failed: {response
                        .StatusCode.ToString()
                        .SeparateWords(' ')
                        .ToLowerInvariant()}.
                    Response content: {await response.Content.ReadAsStringAsync(
                        cancellationToken
                    )}
                    """,
                    true
                ),
            };
        }

View on GitHub (pinned to f6865c8216)

Solutions

  1. Re-copy the ID with Developer Mode enabled (right-click > Copy ID).
  2. Confirm the channel/guild still exists and the identity can see it.
  3. Distinguish ID types: guild ID vs channel ID vs message ID — use the correct one for each command.
  4. Remove stale IDs from your export list.
Defensive patterns

Strategy: validation

Validate before calling

if (!Snowflake.TryParse(channelIdRaw, null).HasValue)
    throw new ArgumentException($"'{channelIdRaw}' is not a valid snowflake.");
var channel = await discord.TryGetChannelAsync(guildId, channelId, ct);
if (channel is null) throw new ArgumentException($"Channel {channelId} not found/visible.");

Try / catch

try { await exporter.ExportChannelAsync(req, progress, ct); }
catch (DiscordChatExporterException ex) when (ex.Message.Contains("not found"))
{
    logger.LogWarning("Channel {Id} not found — skipping", req.Channel.Id);
}

Prevention

When it happens

Trigger: Any GetJsonResponseAsync call returning HttpStatusCode.NotFound. Typical: requesting a channel/guild/user ID that was deleted, never existed, or is not reachable with the current token.

Common situations: Typo in a snowflake ID; channel/guild deleted between planning and export; copied an ID from the wrong Discord surface (e.g., a message ID used where a channel ID was needed); bot removed from the guild so its routes 404.

Related errors

AI-assisted analysis of Tyrrrz/DiscordChatExporter@f6865c8216 (2026-08-13). Data as JSON: /api/errors/8453d75a757ea710. Report an issue: GitHub.