There is no argument given that corresponds to the required parameter 'param' of 'ProductManager.Sort(List<Product>, string)'

'ProductManager' does not contain a definition for 'SetSortStrategy' and no accessible extension method 'SetSortStrategy' accepting a first argument of type 'ProductManager' could be found (are you missing a using directive or an assembly reference?)

There is no argument given that corresponds to the required parameter 'param' of 'ProductManager.Sort(List<Product>, string)'

'ProductManager' does not contain a definition for 'SetSortStrategy' and no accessible extension method 'SetSortStrategy' accepting a first argument of type 'ProductManager' could be found (are you missing a using directive or an assembly reference?)

Process completed with exit code 1.

Possible null reference return.

Dereference of a possibly null reference.

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

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

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

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

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

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

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