#3859·lapce

Lapce fails to launch on NixOS due to panic

Author: tekenCreated Jan 20, 2026Updated Aug 10, 2026
LabelsC-bug

Lapce Version

Lapce 0.4.5

System information

NixOS 25.11

Describe the bug

starting lapce does nothing, running it via the terminal with the -w flag shows the following output

nixos% lapce -w
2026-01-20T13:16:25.792277Z ERROR main lapce_app::app: 3807: Connection refused (os error 111)
2026-01-20T13:16:25.792322Z ERROR main lapce_app::app: 3816: No such file or directory (os error 2)
2026-01-20T13:16:25.797933Z ERROR main lapce_app::app: 404: No such file or directory (os error 2)

thread 'main' (283678) panicked at /build/lapce-0.4.5-vendor/floem-0.2.0/src/app_handle.rs:83:71:
called `Result::unwrap()` on an `Err` value: AdapterNotFoundError
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace