TARGET_NOT_FOUND

What failed

Runtime wake delivery could not find the flow or task target named by durable work, or createRuntimeProgram({ effectTargets }) received a value that is not a recoverable effect() definition.

Why

Flow and task targets may have been renamed, removed, not exported, or omitted from the generated or hand-written runtime entry. Effect recovery targets must be definitions created by effect() with a recovery handler; irreversible definitions cannot be declared as restart recovery targets.

What still works

Other targets in the same runtime entry can continue processing. Affected wake work is blocked instead of retried blindly. An Effect that is not on the program can still execute; cold recovery for that receipt returns handler_unavailable rather than blocking the original call.

Fix

Restore or export the flow/task target, or regenerate artifacts:

crux runtime generate
crux runtime inspect <workId>

After fixing a wake target, retry blocked work with crux runtime retry <workId>.

For Effect recovery targets, pass only recoverable definitions and declare the exact versions you still need after restart:

createRuntimeProgram({
  targets: [reviewFlow],
  transports: [],
  effectTargets: [updateCustomer],
});

Do not add irreversible Effects to effectTargets. Keep undeclared recoverable Effects callable when you only need same-process recovery, and use Project Index effect.recovery_not_runtime_addressable findings to decide what must be exported for cold recovery.

See Durability and restarts and the Effects guide.