"Null check operator used on a null value" in file watcher #43695
Labels
area-core-library
SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries.
customer-dart-sass
library-io
type-bug
Incorrect behavior (everything from a crash to more subtle misbehavior)
This is from a user report (sass/dart-sass#1103), so please follow up with @Daijobou if you need more info to reproduce.
It looks like under some filesystem circumstances, possibly related to hibernation,
dart:io
's file watcher (possibly only on Windows?) can spontaneously produce a "Null check operator used on a null value" error with the following stack trace:This user was running Dart 2.9.3.
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