'ErrorController.Unauthorized()' hides inherited member 'ControllerBase.Unauthorized()'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

'ErrorController.NotFound()' hides inherited member 'ControllerBase.NotFound()'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

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

Possible null reference argument for parameter 's' in 'int int.Parse(string s)'.

Possible null reference argument for parameter 'source' in 'OperatorDto Enumerable.First<OperatorDto>(IEnumerable<OperatorDto> source)'.

Possible null reference argument for parameter 'source' in 'IEnumerable<SelectListItem> Enumerable.Select<OilMarkDto, SelectListItem>(IEnumerable<OilMarkDto> source, Func<OilMarkDto, SelectListItem> selector)'.

Possible null reference argument for parameter 'source' in 'IEnumerable<SelectListItem> Enumerable.Select<OperatorReviewDto, SelectListItem>(IEnumerable<OperatorReviewDto> source, Func<OperatorReviewDto, SelectListItem> selector)'.

Possible null reference argument for parameter 'source' in 'OperatorReviewDto? Enumerable.FirstOrDefault<OperatorReviewDto>(IEnumerable<OperatorReviewDto> source, Func<OperatorReviewDto, bool> predicate)'.

Possible null reference argument for parameter 'source' in 'IEnumerable<<anonymous type: int Id, string DisplayText>> Enumerable.Select<DriverDto, <anonymous type: int Id, string DisplayText>>(IEnumerable<DriverDto> source, Func<DriverDto, <anonymous type: int Id, string DisplayText>> selector)'.

The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds.