deepseek-ai/deepseek-harness · error · Error

client api: method ${JSON.stringify(`${namespace}/${method}`

Error message

client api: method ${JSON.stringify(`${namespace}/${method}`)} conflicts with its namespace service

What it means

Error "client api: method ${JSON.stringify(`${namespace}/${method}`)} conflicts with its namespace service" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/api/gateway/src/client/index.ts:433

      return carrierFailure(endpoint, error)
    }
  }
}

type InvokeRemote = (
  direct: DirectMethod | undefined,
  scoped: ScopedMethod | undefined,
  callerCtx: Context,
  args: readonly unknown[],
) => Promise<RemoteResult<unknown>>

class RemoteNamespaceService extends Service {
  private readonly methods = new Map<string, RemoteMethodRecord>()
  private readonly namespace: string

  static assertMethodAvailable(namespace: string, method: string): void {
    if (REMOTE_NAMESPACE_FIELDS.has(method) || method in RemoteNamespaceService.prototype) {
      throw new Error(`client api: method ${JSON.stringify(`${namespace}/${method}`)} conflicts with its namespace service`)
    }
  }

  constructor(
    ctx: Context,
    name: string,
    private readonly invokeRemote: InvokeRemote,
  ) {
    super(ctx, remoteServiceKey(name))
    this.namespace = name
  }

  assertMethodAvailable(method: string): void {
    RemoteNamespaceService.assertMethodAvailable(this.namespace, method)
    if (method in this && !this.methods.has(method)) {
      throw new Error(`client api: method ${JSON.stringify(`${this.namespace}/${method}`)} conflicts with its namespace service`)
    }
  }

View on GitHub (pinned to b150a551b8)

Solutions

1. Rename the method so it does not shadow its namespace service.

When it happens

Trigger: Thrown at packages/api/gateway/src/client/index.ts:433 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/507eaa3f17837389. Report an issue: GitHub.