TS Server fatal error: Cannot read properties of undefined (reading 'sourceFile')

[siom-system]

Type: Bug

❗️❗️❗️ Please fill in the sections below to help us diagnose the issue ❗️❗️❗️

TypeScript Version: 5.6.3

Steps to reproduce crash

TS Server Log

❗️ Server logging disabled. To help us fix crashes like this, please enable logging by setting:

"typescript.tsserver.log": "verbose"

After enabling this setting, future crash reports will include the server log.

Code OSS version: Firebase Studio 1.94.2-cde (b0e6fa075cda44c438f11d44d4466ea348722d00, 2025-06-20T17:40:20.006Z)
OS version:
Modes:

System Info: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36Extensions: none