Electrs v0.11.1:12 Crashing: "ambiguous configuration - auth and cookie_file can't be specified at the same time"

DIY Community Support
1

Hey everyone,

Ever since updating to the latest version of Bitcoin/Knots after StartOS 4.0 upgrade and trying to run Electrs (currently on package version 0.11.1:12), Electrs immediately enters a crash loop upon startup.

The logs consistently point to an authentication argument collision:

Plaintext

Error: ambiguous configuration - auth and cookie_file can't be specified at the same time
Error: electrs exited with code 1
    at ChildProcess.<anonymous> (/usr/lib/startos/package/index.js:4521:39)

It looks like the StartOS package wrapper script (index.js) is still passing both an explicit auth setting alongside the cookie file mount. Because recent upstream electrs enforces a strict check against passing both simultaneously, the daemon rejects it and exits immediately, preventing it from binding or syncing even after a clean reinstall.

I understand fulcrum is the startOS official app but i want to be able to run mempool.space and “am i exposed” apps respectively.

I Tried most recent knots RDTS and downgraded to pre RTDS same issue.

2

Should be solved with latest update.

1 Like
3

For anyone who comes across this issue. i had to uninstall and reinstall. Rebuild service was not enough to resolve. Electris is now building. Thanks for your help @StuPleb

1 Like