API Key Configuration Breaks CLI Functionality

Resolved 💬 3 comments Opened Jul 28, 2025 by denisbkm Closed Jan 6, 2026

Bug Description
When adding the API key configuration + error messages to my project, the Claude code terminal no longer seems to work!

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 1.0.61
  • Feedback ID: 9965ba17-43a4-47ad-a80b-c143ca83ae8b

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at QX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:1184)\n    at file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:912\n    at Array.map (<anonymous>)\n    at DX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:903)\n    at e_B (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2525:7746)\n    at mM (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at dv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:42847)\n    at uv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38368)\n    at OS (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38296)\n    at FR (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38150)","timestamp":"2025-07-28T12:45:54.459Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at QX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:1184)\n    at file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:912\n    at Array.map (<anonymous>)\n    at DX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:903)\n    at e_B (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2525:7746)\n    at mM (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at dv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:42847)\n    at uv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38368)\n    at OS (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38296)\n    at FR (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38150)","timestamp":"2025-07-28T12:45:54.472Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at QX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:1184)\n    at file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:912\n    at Array.map (<anonymous>)\n    at DX (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1491:903)\n    at e_B (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2525:7746)\n    at mM (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at dv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:42847)\n    at uv (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38368)\n    at OS (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38296)\n    at FR (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:67:38150)","timestamp":"2025-07-28T12:45:54.486Z"},{"error":"AggregateError\n    at oc.from (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:674:46527)\n    at pX.z1 (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:677:10122)\n    at pX.emit (node:events:530:35)\n    at pX.emit (node:domain:489:12)\n    at rd1.<computed> (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:61:1161)\n    at ClientRequest.emit (node:events:518:28)\n    at ClientRequest.emit (node:domain:489:12)\n    at emitErrorEvent (node:_http_client:104:11)\n    at TLSSocket.socketErrorListener (node:_http_client:518:5)\n    at TLSSocket.emit (node:events:518:28)\n    at x21.request (file:///home/denisbp/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:679:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async nW0.do

Note: Error logs were truncated.

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