mem0ai/mem0 · error · Error

Failed to set user ID: ${error instanceof Error ? error.mess

Error message

Failed to set user ID: ${error instanceof Error ? error.message : String(error)}

What it means

Error "Failed to set user ID: ${error instanceof Error ? error.message : String(error)}" thrown in mem0ai/mem0.

Source

Thrown at mem0-ts/src/oss/src/vector_stores/vectorize.ts:365

      const data: VectorizeVector = {
        id: pointId,
        values: [0],
        metadata: { userId },
      };
      await fetch(
        `https://api.cloudflare.com/client/v4/accounts/${this.accountId}/vectorize/v2/indexes/memory_migrations/upsert`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/x-ndjson",
            Authorization: `Bearer ${this.client?.apiToken}`,
          },
          body: JSON.stringify(data) + "\n", // ndjson format
        },
      );
    } catch (error) {
      console.error("Error setting user ID:", error);
      throw new Error(
        `Failed to set user ID: ${error instanceof Error ? error.message : String(error)}`,
      );
    }
  }

  async initialize(): Promise<void> {
    if (!this._initPromise) {
      this._initPromise = this._doInitialize();
    }
    return this._initPromise;
  }

  private async _doInitialize(): Promise<void> {
    await this.ensureClient();
    try {
      // Check if the index already exists
      let indexFound = false;
      for await (const idx of this.client!.vectorize.indexes.list({

View on GitHub (pinned to 001c235229)

Solutions

1. Verify the Cloudflare API token has write permissions for Vectorize.
2. Check that the metadata payload is within Vectorize size limits.
3. Retry transient network failures with backoff.

When it happens

Trigger: Thrown at mem0-ts/src/oss/src/vector_stores/vectorize.ts:365 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mem0ai/mem0@001c235229 (2026-08-15). Data as JSON: /api/errors/5ecfc3dca967a4cb. Report an issue: GitHub.