Claude
Claude Code Connection Dropped ECONNRESET
When Claude Code shows Connection dropped ECONNRESET to api.anthropic.com, try a personal VPN or phone hotspot while the same network still opens claude.ai.
Windows · Mac · DesktopUpdated Sep 19, 2026
Claude Problems & Fixes
Clear steps for Claude access, chats, uploads, projects, and everyday usage problems.
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Claude
Claude Code Thinking Blocks Cannot Be Modified 400
When Claude Code shows API Error 400 that thinking or redacted_thinking blocks cannot be modified, rewind the bad turn or start a fresh session.
Windows · Mac · DesktopUpdated Sep 13, 2026
Claude
Claude Code Tool Call Could Not Be Parsed Retry Failed
When Claude Code shows The model's tool call could not be parsed (retry also failed), switch off Opus 4.8, disable always-thinking, and start a fresh session.
Windows · Mac · DesktopUpdated Sep 13, 2026
Claude
Claude Code Credit Balance Too Low
When Claude Code shows Credit balance too low Add funds, check for a stray API key, then /status and /login to the Pro or Max subscription.
Windows · Mac · DesktopUpdated Sep 12, 2026
Claude
Claude Code API Error 401 Please Run Login
When Claude Code shows Please run /login · API Error: 401, unset a conflicting API key, logout, update, fully restart the terminal, then login again.
Windows · Mac · DesktopUpdated Sep 10, 2026
Claude
Claude Code Not Logged In Please Run Login
When Claude Code shows Not logged in · Please run /login right after Login successful, unlock the macOS keychain or use claude auth login and setup-token in your local shell.
Windows · Mac · DesktopUpdated Sep 9, 2026
Claude
Claude Code MCP Error -32000 Connection Closed
When Claude Code shows MCP error -32000: Connection closed, reconnect from /mcp after startup, keep server logs on stderr, and hand-test the server.
Windows · Mac · DesktopUpdated Sep 7, 2026
Claude
Claude Code PreToolUse Bash Hook Error
When Claude Code shows PreToolUse:Bash hook error after a successful exit 0 hook, emit echo {} or modern hookSpecificOutput JSON instead of silent exit.
Windows · Mac · DesktopUpdated Sep 7, 2026