[BUG] Cannot read properties of undefined (reading 'trim') when resuming session

[marcondesmacaneiro]

Bug Description

When attempting to resume a previous session using the interactive picker or --resume flag, Claude Code crashes with the following error:

ERROR  Cannot read properties of undefined (reading 'trim')

file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2613:4942

- vA7 (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2613:4942)
- h5 (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:20693)
- IY (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:39057)
- ss (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:49664)
- MJ (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:85801)
- Xf (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:84781)
- u_ (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:84606)
- cS (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:81426)
- j0 (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:6360)
- F1 (file:///Users/marcondesmacaneiro/.nvm/versions/node/v22.17.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:252:4874)

Steps to Reproduce

1. Have existing sessions in Claude Code history
2. Run claude and use the interactive picker to select a previous session to resume
3. Or run claude --resume and select a session
4. Error occurs immediately when trying to resume

Environment

• Claude Code Version: 2.1.1 (also occurred on 2.0.76)
• Node.js Version: v22.17.0
• OS: macOS (Darwin 25.1.0)
• Shell: zsh

Investigation Done

• Session file (.jsonl) is valid JSON - no corrupted lines
• All summary entries in the session file have valid string content (not null or empty)
• The issue persists even after upgrading from 2.0.76 to 2.1.1

Expected Behavior

Session should resume normally without crashing.

Additional Context

The session being resumed had 73 messages and the .jsonl file is ~927KB. The file passes JSON validation for all lines.

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] When resuming claude chats - TypeError: Cannot read properties of undefined (reading 'includes') #8236
2. [BUG] TypeError: Cannot read properties of undefined (reading 'startsWith') #11113
3. [BUG] API Error: Cannot read properties of undefined (reading map) #12230

This issue will be automatically closed as a duplicate in 3 days.

• If your issue is a duplicate, please close it and 👍 the existing issue instead
• To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

[wojtess]

Got same problem.
I ma using docker container with:
OS: debian:bookworm
Shell: bash
Claude code version: node2.0.76 (Claude Code)
nodejs version: v22.21.0

[MikeGitIt]

SAME PROBLEM, using the npm client, not the "native" one. If you all are using Claude Code, to develop Claude Code, then you all are not proving the greatness of Claude Code. Just sayin.

[ivan2kh]

Same on 2.1.22.

 ---                                                                                                                                                                                                    
                                                                                                                                                                                                        
 ## Environment                                                                                                                                                                                         
 - Claude Code: 2.1.22                                                                                                                                                                                  
 - Node.js: v22.21.0                                                                                                                                                                                    
 - OS: Linux 6.8.0-90-generic x86_64                                                                                                                                                                    
                                                                                                                                                                                                        
 ## Description                                                                                                                                                                                         
 When trying to resume a session that was interrupted (Ctrl+C), Claude Code crashes with a trim() error on undefined.                                                                                   
                                                                                                                                                                                                        
 ## Steps to reproduce                                                                                                                                                                                  
 1. Start a Claude Code session                                                                                                                                                                         
 2. Interrupt it with Ctrl+C                                                                                                                                                                            
 3. Try to resume with `claude --continue`                                                                                                                                                              
 4. Crash occurs                                                                                                                                                                                        
                                                                                                                                                                                                        
 ## Reproducibility                                                                                                                                                                                     
 Always - happens every time when trying to resume an interrupted session.                                                                                                                              
                                                                                                                                                                                                        
 ## Error                                                                                                                                                                                               
 ```                                                                                                                                                                                                    
 ERROR  Cannot read properties of undefined (reading 'trim')                                                                                                                                            
                                                                                                                                                                                                        
 file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:2722:6198                                                                                                                                
                                                                                                                                                                                                        
 - d15 (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:2722:6198)                                                                                                                        
 - A9 (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:21820)                                                                                                                         
 - i2 (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:38061)                                                                                                                         
 - oT (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:49007)                                                                                                                         
 - _M (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:85342)                                                                                                                         
 - Li (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:84348)                                                                                                                         
 - qi (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:84174)                                                                                                                         
 - wh (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:81067)                                                                                                                         
 - g0 (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:8914)                                                                                                                          
 - hA (file:///usr/lib/node_modules/@anthropic-ai/claude-code/cli.js:601:7651)                                                                                                                          
 ```                                                                                                                                                                                                    
                                                                                                                                                                                                        
 ## Expected behavior                                                                                                                                                                                   
 Session should resume successfully, or provide a clear error message if the session data is corrupted.                                                                                                 
                                                                                                                                                                                                        
 ## Workaround                                                                                                                                                                                          
 Deleting session files in `~/.claude/projects/*/sessions/` allows starting fresh. 

[greydove749]

Likely same root cause as #27219 — the TUI renderer calls .trim() on an undefined field when replaying hook event records (hook_success, hook_blocking_error, etc.) during --resume. Root cause analysis and stack trace from the Bun bundle there.

[xhrg]

Same here

windows 10
VS Code：1.111.0
Claude Code for VS Code：2.1.74

The claude code cli runs okay