Invalid JSON Request: Malformed Low Surrogate Character at Line 1, Column 305520

Resolved 💬 3 comments Opened Jun 18, 2025 by rxstd Closed Nov 30, 2025

Bug Description
API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 column 305520 (char 305519)"}}

Environment Info

  • Platform: macos
  • Terminal: cursor
  • Version: 1.0.22
  • Feedback ID: d8ac77fc-993d-45d3-a083-12375fa3163e

Errors

[{"error":"Error: Request was aborted.\n    at xo._createMessage (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1335:6810)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-06-13T14:18:48.201Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at lD (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1495:1169)\n    at file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1495:905\n    at Array.map (<anonymous>)\n    at PK (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1495:896)\n    at j$2 (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1940:9109)\n    at ME (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:19798)\n    at TT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:42555)\n    at RT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38104)\n    at Kq (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38032)\n    at uE (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:37886)","timestamp":"2025-06-13T14:33:03.528Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: prisma\n    at file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1399:418\n    at Object.useMemo (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:26271)\n    at lJ9.useMemo (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:46:15576)\n    at FW (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1399:312)\n    at ME (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:19798)\n    at TT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:42555)\n    at RT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38104)\n    at Kq (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38032)\n    at uE (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:37886)\n    at uW (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:34976)","timestamp":"2025-06-13T14:34:47.884Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: prisma\n    at file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1399:418\n    at Object.useMemo (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:26271)\n    at lJ9.useMemo (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:46:15576)\n    at FW (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1399:312)\n    at ME (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:142:19798)\n    at TT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:42555)\n    at RT (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38104)\n    at Kq (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:38032)\n    at uE (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:37886)\n    at uW (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:144:34976)","timestamp":"2025-06-13T14:35:10.716Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1399:418\n    at Object.useMemo (file:///Users/ctrlisk/.nvm/versions/node/v20.15.1/lib/node_modules/@anthropic-ai/claude-code

Note: Error logs were truncated.

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