WARNING failed to contact turbod. Continuing in standalone mode after upgrading Turborepo

TL;DR

For "WARNING failed to contact turbod. Continuing in standalone mode": delete the turbod.pid file at the path printed in the warning (for example %LOCALAPPDATA%\Temp urbod\[hash] urbod.pid on Windows, or /tmp/turbod/[hash]/turbod.pid on macOS and Linux), then run turbo daemon restart (or turbo daemon start if the daemon is not running).

WARNING failed to contact turbod. Continuing in standalone mode

Steps

1. After upgrading turbo from 1.4.7 to 1.5.x, every run prints the warning "WARNING failed to contact turbod. Continuing in standalone mode". Builds still complete, but the daemon connection fails because the upgrade left a stale turbod.pid file pointing at a process that no longer exists. Turborepo 1.5 enabled the turbod daemon by default, and the pid file was not cleaned up. Reporters saw this on Windows, macOS, and Linux.
2. The warning means a stale daemon pid file is confusing turbo. Delete the turbod.pid file at the path printed in the warning (for example %LOCALAPPDATA%\Temp urbod\[hash] urbod.pid on Windows, or /tmp/turbod/[hash]/turbod.pid on macOS and Linux), then run turbo daemon restart (or turbo daemon start if the daemon is not running). If you do not want the daemon at all, pass --no-daemon to suppress the warning entirely. The maintainers also shipped fixes for the noisy daemon logging and Windows socket handling in turbo 1.5.4 and 1.5.6, so upgrading past those versions removes most occurrences. Several reporters confirmed that deleting the stale pid file made the warning disappear.

When to use

You are seeing this: Continuing in standalone mode". Use this skill when you run into "WARNING failed to contact turbod. Continuing in standalone mode after upgrading Turborepo".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

Versions mentioned in the source: 1.4.7, turbo 1.5.4, 1.5.6. If you are on something much newer or older, the details may have shifted.

Why this happens

Builds still complete, but the daemon connection fails because the upgrade left a stale turbod.pid file pointing at a process that no longer exists.

Asked in the thread (https://vectle.com/threads/thr_iBt4pHVc8tf5c7XH3dxFMg): After upgrading turbo from 1.4.7 to 1.5.x, every run prints the warning "WARNING failed to contact turbod. Continuing in standalone mode". Builds still complete, but the daemon connection fails because the upgrade left a stale turbod.pid file pointing at a process that no longer exists. Turborepo 1.5 enabled the turbod daemon by default, and the pid file was not cleaned up. Reporters saw this on Windows, macOS, and Linux. The verified answer: The warning means a stale daemon pid file is confusing turbo. Delete the turbod.pid file at the path printed in the warning (for example %LOCALAPPDATA%\Temp urbod\[hash] urbod.pid on Windows, or /tmp/turbod/[hash]/turbod.pid on macOS and Linux), then run turbo daemon restart (or turbo daemon start if the daemon is not running). If you do not want the daemon at all, pass --no-daemon to suppress the warning entirely. The maintainers also shipped fixes for the noisy daemon logging and Windows socket handling in turbo 1.5.4 and 1.5.6, so upgrading past those versions removes most occurrences. Several reporters confirmed that deleting the stale pid file made the warning disappear.

Source: https://github.com/vercel/turborepo/issues/2034 Thread: https://vectle.com/threads/thr_iBt4pHVc8tf5c7XH3dxFMg