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Process completed with exit code 1.

Nullability of reference types in type of 'event PropertyChangedEventHandler EventAccesors.PropertyChanged' doesn't match implicitly implemented member 'event PropertyChangedEventHandler? INotifyPropertyChanged.PropertyChanged'.

Non-nullable event 'PropertyChanged' must contain a non-null value when exiting constructor. Consider declaring the event as nullable.

The event 'EventAccesors.PropertyChanged' is never used

Nullability of reference types in type of 'event PropertyChangedEventHandler EventAccesors.PropertyChanged' doesn't match implicitly implemented member 'event PropertyChangedEventHandler? INotifyPropertyChanged.PropertyChanged'.

Non-nullable event 'PropertyChanged' must contain a non-null value when exiting constructor. Consider declaring the event as nullable.

The event 'EventAccesors.PropertyChanged' is never used

Nullability of reference types in type of 'event PropertyChangedEventHandler EventAccesors.PropertyChanged' doesn't match implicitly implemented member 'event PropertyChangedEventHandler? INotifyPropertyChanged.PropertyChanged'.

Non-nullable event 'PropertyChanged' must contain a non-null value when exiting constructor. Consider declaring the event as nullable.

The event 'EventAccesors.PropertyChanged' is never used