claude-code - 💡(How to fix) Fix [Bug] Regression: --resume crashes with "g9H is not a function" in 2.1.120 [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/jordan_of/.local/share/claude/versions/2.1.117 (expected in multi-process scenarios)\n at fn_ (/$bunfs/root/src/entrypoints/cli.js:2754:2177)\n at H98 (/$bunfs/root/src/entrypoints/cli.js:2754:1257)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T12:47:30.024Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at aJH (/$bunfs/root/src/entrypoints/cli.js:2754:30499)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T12:47:30.047Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at aJH (/$bunfs/root/src/entrypoints/cli.js:2754:30499)\n at async G (/$bunfs/root/src/entrypoints/cli.js:6151:11021)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T12:47:33.906Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at aJH (/$bunfs/root/src/entrypoints/cli.js:2754:30499)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6151:11827)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T12:47:33.906Z"},{"error":"Error: EISDIR: illegal operation on a directory, read '/Users/jordan_of/code/monofolk/.claude/worktrees/of-mobile-web/apps/of-mobile-web-testbed'\n at J1H (/$bunfs/root/src/entrypoints/cli.js:1696:144)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T13:37:50.864Z"},{"error":"Error: EISDIR: illegal operation on a directory, read '/Users/jordan_of/code/monofolk/.claude/worktrees/of-mobile-web/apps/of-mobile-web-testbed'\n at J1H (/$bunfs/root/src/entrypoints/cli.js:1696:144)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T13:37:54.269Z"},{"error":"Error: File does not exist. Note: your current working directory is /Users/jordan_of/code/monofolk.\n at call (/$bunfs/root/src/entrypoints/cli.js:4746:7634)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-22T13:…

TL;DR

The most likely fix is to guard the call to g9H(K) by checking if it's defined before calling it, to prevent the crash when FXK is disabled.

Guidance

• The issue seems to be caused by the g9H function being undefined when FXK is disabled, which is the case when the enabled flag is set to false.
• To fix this, you can add a null check before calling g9H(K), like this: g9H?.(K).
• This will prevent the crash when g9H is undefined.
• Alternatively, you can also consider updating the resume path to get the callback from a hook that's still live, as mentioned in the hypothesized fix.

Example

useEffect(() => {
  if (K && K.length > 0)
    HP_(K, K8()),
    hY8({...}),
    tC8(K),
    UQ(K),
    sYH.current.current = xz_(K, g8),
    g9H?.(K) // Add a null check before calling g9H
}, []);

Notes

• The provided code snippet is based on the hypothesized fix and may need to be adjusted according to the actual code.
• The issue seems to be specific to version 2.1.120, and the workaround is to use version 2.1.119.

Recommendation

Apply the workaround by using version 2.1.119 until the issue is fixed in a future version, as the default symlink at ~/.local/bin/claude silently locks users into 2.1.120.