The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Cannot convert null literal to non-nullable reference type.

The type 'System.Security.Claims.ClaimsPrincipal?' cannot be used as type parameter 'TService' in the generic type or method 'ServiceCollectionServiceExtensions.AddScoped<TService>(IServiceCollection, Func<IServiceProvider, TService>)'. Nullability of type argument 'System.Security.Claims.ClaimsPrincipal?' doesn't match 'class' constraint.

Nullability of reference types in return type of 'lambda expression' doesn't match the target delegate 'Func<IServiceProvider, ClaimsPrincipal?>' (possibly because of nullability attributes).

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

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

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

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

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

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