How to exclude example folder when auto_register generator

[longtn-imt]

When I run the package with the example directory

Terminal log error

Deprecated. Use `dart run` instead.
[INFO] Generating build script completed, took 473ms
[INFO] Reading cached asset graph completed, took 425ms
[INFO] Checking for updates since last build completed, took 1.4s
[INFO] Running build completed, took 73ms
[INFO] Caching finalized dependency graph completed, took 205ms
[SEVERE] injectable_generator:injectable_config_builder on example/lib/config/injector.dart (cached):

FormatException: Not an instance of Type.
[SEVERE] Failed after 297ms