Found markup element with unexpected name 'Spinner'. If this is intended to be a component, add a @using directive for its namespace.

Possible null reference argument for parameter 'user' in 'Task<ApplicationUser> IdentityUserAccessor.GetRequiredUserAsync(ClaimsPrincipal user)'.

Possible null reference argument for parameter 'user' in 'Task<ApplicationUser> IdentityUserAccessor.GetRequiredUserAsync(ClaimsPrincipal user)'.

Possible null reference argument for parameter 'user' in 'Task<ApplicationUser> IdentityUserAccessor.GetRequiredUserAsync(ClaimsPrincipal user)'.

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

Possible null reference argument for parameter 'user' in 'Task<ApplicationUser> IdentityUserAccessor.GetRequiredUserAsync(ClaimsPrincipal user)'.

Possible null reference argument for parameter 'user' in 'Task<ApplicationUser> IdentityUserAccessor.GetRequiredUserAsync(ClaimsPrincipal user)'.

Non-nullable property 'CurrentSlide' 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 'key' in 'ApiKeyCredential.implicit operator ApiKeyCredential(string key)'.