FTPError: 550 The process cannot access the file because it is being used by another process.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-dotnet@v3, SamKirkland/[email protected]. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The type 'ChessTourManager.DataAccess.Entities.Tournament?' cannot be used as type parameter 'TEntity' in the generic type or method 'DbSet<TEntity>'. Nullability of type argument 'ChessTourManager.DataAccess.Entities.Tournament?' doesn't match 'class' constraint.

Possible null reference assignment.

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

Dereference of a possibly null reference.

The type 'ChessTourManager.DataAccess.Entities.Tournament?' cannot be used as type parameter 'TEntity' in the generic type or method 'EntityFrameworkQueryableExtensions.Include<TEntity, TProperty>(IQueryable<TEntity>, Expression<Func<TEntity, TProperty>>)'. Nullability of type argument 'ChessTourManager.DataAccess.Entities.Tournament?' doesn't match 'class' constraint.

Dereference of a possibly null reference.

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

The type 'ChessTourManager.DataAccess.Entities.Tournament?' cannot be used as type parameter 'TEntity' in the generic type or method 'EntityFrameworkQueryableExtensions.Include<TEntity, TProperty>(IQueryable<TEntity>, Expression<Func<TEntity, TProperty>>)'. Nullability of type argument 'ChessTourManager.DataAccess.Entities.Tournament?' doesn't match 'class' constraint.

Dereference of a possibly null reference.