deepseek-ai/deepseek-harness · error · LspError

LSP_DISPOSED

LSP_DISPOSED

Error message

LSP instance was disposed

What it means

Error "LSP instance was disposed" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/lsp/lsp-stdio/src/instance.ts:128

  private async initialize(): Promise<void> {
    const initializeResult = await this.connection.request('initialize', {
      // A subprocess provider may run in another PID namespace or machine;
      // the host PID would let the server monitor an unrelated process.
      processId: null,
      rootUri: this.spec.workspaceUri,
      workspaceFolders: [{ uri: this.spec.workspaceUri, name: 'workspace' }],
      capabilities: CLIENT_CAPABILITIES,
      initializationOptions: this.spec.initializationOptions,
    }) as WireInitializeResult
    const capabilities = initializeResult.capabilities
    // An omitted encoding defaults to utf-16; any other value is a protocol error we reject here.
    negotiatePositionEncoding(capabilities.positionEncoding)
    this.capabilities = capabilities
    await this.connection.notify('initialized', {})
  }

  private async runQuery(request: LspProviderQuery, source: HostSource, signal?: AbortSignal): Promise<LspQueryResult> {
    if (this.disposed) throw new LspError('LSP instance was disposed', 'LSP_DISPOSED')
    /* v8 ignore next -- the abortable queue wait rejects a pre-aborted signal before runQuery; this is a belt-and-suspenders guard. */
    if (signal?.aborted) throw abortError(signal)
    // Observe abort during the handshake wait, and never pool a poisoned instance: if the wait ends
    // in failure — an abort on a still-pending handshake, OR `initialize` rejecting (utf-8
    // negotiation, malformed result) without the process exiting — tear the instance down so a
    // permanently-rejecting/pending `ready` can't make every later query for this workspace fail.
    try {
      await abortable(this.ready, signal)
    } catch (error) {
      if (!this.dead) {
        await this.startTeardown()
      }
      throw error
    }
    const capabilities = this.capabilities
    /* v8 ignore next -- `ready` resolves only after capabilities are set, else it rejects above; defensive. */
    if (capabilities === undefined) throw new Error('LSP instance is not initialized')
    if (!supportsOperation(capabilities, request.operation)) {

View on GitHub (pinned to b150a551b8)

Solutions

1. Re-open the document or restart the LSP instance; it was disposed.

When it happens

Trigger: Thrown at packages/lsp/lsp-stdio/src/instance.ts:128 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/36a003ab59449eaa. Report an issue: GitHub.