claude-code - 💡(How to fix) Fix [BUG] Claude Desktop crashes with "e.replace is not a function" (error code: 1GY780K) when using Lark MCP tool to read documents [1 participants]

From ~/Library/Logs/Claude/claude.ai-web.log:

[BOOTSTRAP] Fatal error boundary triggered { "errorMessage": "e.replace is not a function", "errorCode": "1GY780K", "url": "/local_sessions/local_a8fae05c-e6d2-4230-93e9-cf89e81d2c09", "errorStack": "TypeError: e.replace is not a function\n at Iet (index-D6CrmkzP.js:25:391377)\n at Oet (index-D6CrmkzP.js:25:393718)\n at Het (index-D6CrmkzP.js:25:395787)\n at Qet (index-D6CrmkzP.js:25:400559)\n at index-D6CrmkzP.js:25:582364\n at Object.Xi [as useMemo] (vendor-BFBxBwou.js:11:61312)" }

TL;DR

The issue is likely caused by a JavaScript error in the Claude Desktop code, specifically a TypeError where e.replace is not a function, and can be fixed by investigating and resolving this error.

Guidance

• Investigate the index-D6CrmkzP.js file, specifically line 25, to determine why e.replace is not a function.
• Verify that the e object is correctly defined and has the expected properties before attempting to call replace on it.
• Check if there are any differences in how the Lark MCP server is handled between the Claude Desktop and CLI versions, as the same configuration works correctly in the CLI.
• Review the error stack to identify the sequence of function calls leading up to the error and determine where the issue originates.

Example

No code snippet can be provided without more information about the index-D6CrmkzP.js file and the surrounding code.

Notes

The issue is reported as a regression, indicating that it worked in a previous version, but the last working version is not specified. This information may be helpful in identifying the cause of the issue.

Recommendation

Apply a workaround by temporarily removing the Lark MCP server configuration from claude_desktop_config.json to prevent the crash, while investigating the root cause of the JavaScript error.