continuedev/continue · warning · Error

Failed to fetch channels: ${response.statusText}

Error message

Failed to fetch channels: ${response.statusText}

What it means

The adapter intentionally does not implement reranking for Vertex AI — the method is a hard stub that always throws. Vertex AI has no rerank endpoint exposed through this adapter.

Source

Thrown at core/context/providers/DiscordContextProvider.ts:80

    if (!response.ok) {
      throw new Error(`Failed to fetch messages: ${response.statusText}`);
    }

    return response.json();
  }

  async fetchChannels(fetch: FetchFunction): Promise<Array<DiscordChannel>> {
    const url = this.getUrl(`/guilds/${this.options.guildId}/channels`);
    const response = await fetch(url, {
      headers: {
        Authorization: `Bot ${this.options.discordKey}`,
        "Content-Type": "application/json",
      },
    });

    if (!response.ok) {
      throw new Error(`Failed to fetch channels: ${response.statusText}`);
    }

    const channels = await response.json();
    // Filter channels to only include text channels (type 0)
    return channels.filter((channel: DiscordChannel) => channel.type === 0);
  }

  async getContextItems(
    query: string,
    extras: ContextProviderExtras,
  ): Promise<ContextItem[]> {
    const channels = await this.fetchChannels(extras.fetch);

    let channelId: string;
    // Find the channel by ID or name in the query string. If not found, use the first channel
    const selectedChannel = channels.find(
      (channel) => channel.id === query || channel.name === query,
    );

View on GitHub (pinned to 5522c6f44c)

Solutions

1. Route rerank requests to a provider that supports them (Cohere, Mistral, Jina)
2. Conditionally skip rerank when the provider is vertexai in multi-provider setups
3. File a feature request if Vertex adds a rerank API

Example fix

// before
await vertexApi.rerank({ query, documents });

// after
if (provider !== 'vertexai') await api.rerank({ query, documents });
else await cohereApi.rerank({ query, documents });

const supportsRerank = (api: unknown): api is { rerank(b: RerankCreateParams): Promise<CreateRerankResponse> } => typeof (api as any)?.rerank === 'function' && !(api instanceof VertexAIApi);

const canRerank = (provider: string): boolean => provider !== 'vertexai';

try { return await api.rerank(body); } catch (e) { if ((e as Error).message.includes('not supported by VertexAI')) return fallbackRerank(body); throw e; }

When it happens

Trigger: Any call to rerank() on the VertexAI adapter, regardless of arguments.

Common situations: Generic provider-agnostic code that calls rerank on every configured provider; migrating a rerank pipeline from Cohere/Mistral to Vertex.

Related errors

• LastXCommitsDepth must be a number
• Method not implemented.
• URL is not defined in params
• Response body is null
• Profile ${profileId} not found

AI-assisted analysis of continuedev/continue@5522c6f44c (2026-08-27). Data as JSON: /api/errors/cbd6a51bcd66fbc6. Report an issue: GitHub.