directory-picker-unavailable

directory-picker-unavailable

Error message

host.pickDirectory needs the native capability; the composed picker serves "${capability.kind}"

What it means

Error "host.pickDirectory needs the native capability; the composed picker serves "${capability.kind}"" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/host/apiproxy/src/api-proxy.ts:2845

        return Promise.resolve(ok(request, {
          version: '0.0.1',
          // Same source as session.create's fallback: the UI's default project
          // must match where an unspecified-cwd session actually lands.
          cwd: defaults.cwd,
          // Read live for the same reason: this is what the NEXT session will
          // start from, so a saved default has to be what it reports.
          provider: selection.provider,
          model: selection.model,
          attachedSessions: ctx.agents.list().length,
          home: homedir(),
          canOpenPath: canOpenPaths(),
        }))
      },

      async pickDirectory(request, signal) {
        const capability = ctx.directoryPicker.capability()
        if (capability.kind !== 'native') {
          return err(request, {
            code: 'directory-picker-unavailable',
            message: `host.pickDirectory needs the native capability; the composed picker serves "${capability.kind}"`,
            details: { capability: capability.kind },
          })
        }
        try {
          const path = await capability.pick(signal)
          return ok(request, { path })
        } catch (error: unknown) {
          if (signal.aborted) {
            return err(request, {
              code: 'cancelled',
              message: 'directory picker was aborted',
              details: {},
            })
          }
          return err(request, {
            code: 'internal',

View on GitHub (pinned to b150a551b8)

Solutions

Compose a picker with the native capability for host.pickDirectory; the current picker serves a different kind.

When it happens

Trigger: Thrown at packages/host/apiproxy/src/api-proxy.ts:2845 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/082b2ee2d3170ae7. Report an issue: GitHub.