Possible null reference return.

Converting null literal or possible null value to non-nullable type.

Cannot convert null literal to non-nullable reference type.

Possible null reference argument for parameter 'result' in 'Task<TEntity> Task.FromResult<TEntity>(TEntity result)'.

Converting null literal or possible null value to non-nullable type.

Non-nullable property 'ClosureReason' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference argument for parameter 'result' in 'Task<TViewModel> Task.FromResult<TViewModel>(TViewModel result)'.

Converting null literal or possible null value to non-nullable type.

Non-nullable property 'AccountName' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.