Upgrading to node22 causes Cannot read properties of undefined (reading 'toString')

[gtokman]

Not sure if node 22 is supported, but after upgrading we're seeing the following issue:

7s
Run npx sst deploy
Attention: SST now collects completely anonymous telemetry regarding usage. This is used to guide SST's roadmap.
You can learn more, including how to opt-out of this anonymous program, by heading over to:
https://docs.sst.dev/anonymous-telemetry

SST v2.43.4

➜  App:     backend
   Stage:   v3-0-[1](Redacted>
   Region:  us-east-1
   Account: <Redacted>


Error: Cannot read properties of undefined (reading 'toString')

Trace: TypeError: Cannot read properties of undefined (reading 'toString')

Need help with this error? Post it in #help on the SST Discord https://sst.dev/discord
    at file:///home/runner/work/candle/candle/node_modules/sst/constructs/Function.js:310:52
    at process.<anonymous> (file:///home/runner/work/candle/candle/node_modules/sst/cli/sst.js:58:[21](https://github.com/candlefinance/candle/actions/runs/13776335823/job/38526356454#step:5:22))
    at process.emit (node:events:530:35)
    at process.emit (node:domain:489:12)
    at process._fatalException (node:internal/process/execution:154:[25](https://github.com/candlefinance/candle/actions/runs/13776335823/job/38526356454#step:5:26))
    at throwUnhandledRejectionsMode (node:internal/process/promises:394:5)
    at processPromiseRejections (node:internal/process/promises:475:17)
    at process.processTicksAndRejections (node:internal/process/task_queues:106:[32](https://github.com/candlefinance/candle/actions/runs/13776335823/job/38526356454#step:5:33))

[gtokman]

Upgrading to latest sst fixed it.