_TypeError: type 'Null' is not a subtype of type 'String' in type cast
at IntelliJValidatorOnMac.installed.<anonymous closure>(intellij_validator.dart:496)
at ListBase._filter(list.dart:293)
at ListBase.removeWhere(list.dart:281)
at IntelliJValidatorOnMac.installed(intellij_validator.dart:489)
at IntelliJValidator.installedValidators(intellij_validator.dart:74)
at _DefaultDoctorValidatorsProvider.validators(doctor.dart:112)
at Doctor.validators(doctor.dart:237)
at Doctor.startValidatorTasks(doctor.dart:243)
at Doctor.diagnose(doctor.dart:378)
at DoctorCommand.runCommand(doctor.dart:49)
at FlutterCommand.verifyThenRunCommand(flutter_command.dart:1662)
at <asynchronous gap>(async)
at FlutterCommand.run.<anonymous closure>(flutter_command.dart:1350)
at <asynchronous gap>(async)
at AppContext.run.<anonymous closure>(context.dart:150)
at <asynchronous gap>(async)
at CommandRunner.runCommand(command_runner.dart:212)
at <asynchronous gap>(async)
at FlutterCommandRunner.runCommand.<anonymous closure>(flutter_command_runner.dart:348)
at <asynchronous gap>(async)
at AppContext.run.<anonymous closure>(context.dart:150)
at <asynchronous gap>(async)
at FlutterCommandRunner.runCommand(flutter_command_runner.dart:294)
at <asynchronous gap>(async)
at run.<anonymous closure>.<anonymous closure>(runner.dart:112)
at <asynchronous gap>(async)
at AppContext.run.<anonymous closure>(context.dart:150)
at <asynchronous gap>(async)
at main(executable.dart:90)
at <asynchronous gap>(async)