See package layout guidelines on how to add an example.

Because:

• package:dartness_server/dartness.dart that imports:
• package:dartness_server/src/dartness.dart that imports:
• package:dartness_server/src/server/log_requests_interceptor.dart that imports:
• package:dartness_server/src/server/dartness_response.dart that imports:
• dart:io

lib/src/schedule/time_unit.dart:1:1

  ╷
1 │ ┌ /// A TimeUnit represents time durations at a given unit of granularity and provides utility methods 
2 │ │ /// to convert across units, and to perform timing and delay operations in these units. 
3 │ │ /// A TimeUnit does not maintain time information, but only helps organize and use time representations 
4 │ │ /// that may be maintained separately across various contexts. A nanosecond is defined as one thousandth of a microsecond, 
5 │ │ /// a microsecond as one thousandth of a millisecond, a millisecond as one thousandth of a second, a minute as sixty seconds, 
  │ └────────────────────────────────────────────────────────────────────────────────────────────^
  ╵

To reproduce make sure you are using the lints_core and run dart analyze lib/src/schedule/time_unit.dart

lib/src/string_extension.dart:68:49

   ╷
68 │       stringToIterable((e) => bool.tryParse(e)).whereNotNull();
   │                                                 ^^^^^^^^^^^^
   ╵

To reproduce make sure you are using the lints_core and run dart analyze lib/src/string_extension.dart

Try running dart pub upgrade --major-versions injector to update the constraint.