Dart SDK Version (dart --version) Dart VM version: 2.2.0 (Unknown timestamp) on "linux_x64" Whether you are using Windows, MacOSX, or Linux (if applicable) Linux 4.4.0-139-generic #165-Ubuntu SMP W...

Dart File.writeAsString() method does not write to file if await is not done immediately · Issue #36087 · dart-lang/sdk