TypeError: Utils.isRegExp is not a function

[reeseovine]

No matter how I try to run mjolnir, it always seems to fail right away with this error message:

/opt/mjolnir/node_modules/config/lib/config.js:1006
    } else if (Utils.isRegExp(parent)) {
                     ^

TypeError: Utils.isRegExp is not a function
    at _clone (/opt/mjolnir/node_modules/config/lib/config.js:1006:22)
    at Config.cloneDeep (/opt/mjolnir/node_modules/config/lib/config.js:1046:10)
    at /opt/mjolnir/node_modules/config/lib/config.js:1318:32
    at Array.forEach (<anonymous>)
    at util.extendDeep (/opt/mjolnir/node_modules/config/lib/config.js:1293:9)
    at /opt/mjolnir/node_modules/config/lib/config.js:651:12
    at Array.forEach (<anonymous>)
    at util.loadFileConfigs (/opt/mjolnir/node_modules/config/lib/config.js:648:16)
    at new Config (/opt/mjolnir/node_modules/config/lib/config.js:113:27)
    at Object.<anonymous> (/opt/mjolnir/node_modules/config/lib/config.js:1510:31)

Node.js v23.0.0

This is on v1.8.0 as well as main

Invocations I've tried:

• node lib/index.js --mjolnir-config ./config/production.yaml
• /usr/bin/node /opt/mjolnir/lib/index.js --mjolnir-config /opt/mjolnir/config/production.yaml
• yarn run start:dev --mjolnir-config /opt/mjolnir/config/production.yaml

* This is a Debian 12 system. I installed nodejs from apt, then corepack enable for yarn. I followed the self-build guide and there were no errors until trying to run it.

[arjan-s]

Same here on 1.8.3 (the latest release atm). In my case it was caused by upgrading nodejs from (22.10.0-1 -> 23.1.0-1). Downgrading nodejs again fixed the issue (temporarily obviously).