Johnson Ejezie

[bug]: build runner failing on Stacked-generator-1.6.1-pre.1

3

### Describe the bug Built build_runner:build_runner. [INFO] Generating build script completed, took 752ms [WARNING] ../../.pub-cache/hosted/pub.dev/stacked_generator-1.6.1-pre.1/lib/src/generators/getit/dependency_config_factory.dart:119:51: Error: Undefined name 'InitializableSingleton'. .instanceOf(const TypeChecker.fromRuntime(InitializableSingleton))) { ^^^^^^^^^^^^^^^^^^^^^^ [INFO] Precompiling build script... completed, took 1.6s...