Claude desktop mcp出現error

[Marjorieccc]

在claude安裝時會出現error

Unexpected token 'H', "HowToCook MCP服务器启动成功" is not valid JSON {
  metadata: {
    context: 'connection',
    stack: `SyntaxError: Unexpected token 'H', "HowToCook MCP服务器启动成功" is not valid JSON\n` +
      '    at JSON.parse (<anonymous>)\n' +
      '    at nRe (C:\\AppData\\Local\\AnthropicClaude\\app-0.10.14\\resources\\app.asar\\.vite\\build\\index.js:109:189)\n' +
      '    at rRe.readMessage (C:\\AppData\\Local\\AnthropicClaude\\app-0.10.14\\resources\\app.asar\\.vite\\build\\index.js:109:115)\n' +
      '    at aRe.processReadBuffer (C:\\AppData\\Local\\AnthropicClaude\\app-0.10.14\\resources\\app.asar\\.vite\\build\\index.js:110:1842)\n' +
      '    at Socket.<anonymous> (C:\\AppData\\Local\\AnthropicClaude\\app-0.10.14\\resources\\app.asar\\.vite\\build\\index.js:110:1523)\n' +
      '    at Socket.emit (node:events:518:28)\n' +
      '    at addChunk (node:internal/streams/readable:561:12)\n' +
      '    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)\n' +
      '    at Readable.push (node:internal/streams/readable:392:5)\n' +
      '    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)'
  }
}

經研究後，刪除index.js裡的console.log即可
原因是Claude的MCP protocol expects JSON message，而不是純文字到stdout

參考: Unexpected token 'S' is not valid JSON in Claude Desktop