claude-code - 💡(How to fix) Fix v2.1.97 crashes on Linux x64 with Bun CommonJS module error [1 participants]

6 | "use strict"; 7 | 8 | // 9 | if (entry.instantiate) 10 | return entry.instantiate; 11 | var instantiatePromise = (async () => { ^ TypeError: Expected CommonJS module to have a function wrapper. If you weren't messing around with Bun's internals, this is a bug in Bun

Bun v1.3.11 (Linux x64 baseline)

TL;DR

The most likely fix is to extract cli.js from the npm package and run it via Node instead of the compiled Bun binary to avoid the regression in CommonJS module loading.

Guidance

• The issue is caused by a regression in the Bun build (87b3dff3) used in Claude Code v2.1.97, which can be mitigated by using the Node-based installation approach.
• To verify the fix, run the claude-wrapper.sh script and check that it executes without the TypeError: Expected CommonJS module to have a function wrapper error.
• Ensure that the package.json file in the Node-based installation directory has the correct configuration, including {"type": "module"}, to enable ES module support.
• If the workaround is successful, consider monitoring the Bun issue tracker for a fix to the regression in the 87b3dff3 build.

Example

The provided workaround script can be used as a starting point:

cat > ~/.local/share/claude/node-versions/2.1.97/claude-wrapper.sh << 'WRAPPER'
#!/usr/bin/env bash
exec node ~/.local/share/claude/node-versions/2.1.97/cli.js "$@"
WRAPPER

This script executes the cli.js file using Node, bypassing the compiled Bun binary.

Notes

This workaround may have performance implications, as it uses the Node interpreter instead of the compiled Bun binary. Additionally, this fix assumes that the cli.js file and its dependencies are compatible with the Node version being used (v25.9.0 in this case).

Recommendation

Apply the workaround by extracting cli.js from the npm package and running it via Node, as this approach has been verified to resolve the issue. This recommendation is based on the analysis of the regression in the Bun build (87b3dff3) and the successful execution of the cli.js file via Node.