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  "title": "MCP JSON-RPC Error Codes Complete Reference and Troubleshooting",
  "summary": "Complete reference for MCP JSON-RPC error codes (-32000 to -32099 and 32600-32603), including meanings, common causes, and troubleshooting steps for each error code.",
  "content": "# Overview\n\nMCP (Model Context Protocol) uses JSON-RPC 2.0 with standard error codes. This article provides complete error code reference and troubleshooting guide.\n\n## Standard Error Codes\n\n| Code | Name | Description |\n|------|------|-------------|\n| -32700 | Parse error | JSON parsing failed |\n| -32600 | Invalid Request | Invalid request format |\n| -32601 | Method not found | Method doesn't exist |\n| -32602 | Invalid params | Invalid parameters |\n| -32603 | Internal error | Internal error |\n\n## MCP Extended Error Codes (-32000 to -32099)\n\n| Code | Name | Description |\n|------|------|-------------|\n| -32000 | Server error | MCP Server internal error |\n| -32001 | Connection error | Connection error |\n| -32002 | Timeout error | Operation timeout |\n| -32003 | Resource not found | Resource doesn't exist |\n| -32004 | Resource expired | Resource expired |\n| -32005 | Invalid resource | Invalid resource |\n\n## Error Response Format\n\n```json\n{\n  \"jsonrpc\": \"2.0\",\n  \"error\": {\n    \"code\": -32600,\n    \"message\": \"Invalid Request: missing method field\"\n  },\n  \"id\": 1\n}\n```\n\n## Troubleshooting\n\n1. Check JSON format validity\n2. Verify method name exists\n3. Validate parameter types and required fields\n4. Confirm MCP Server is running\n5. Check Server error logs\n\n## References\n\n- [MCP Protocol Specification](https://modelcontextprotocol.io/specification/versioning)\n- [JSON-RPC 2.0 Specification](https://www.jsonrpc.org/specification)\n",
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      "notes": "错误码参考准确",
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