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.

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

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

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

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

Dereference of a possibly null reference.

Possible null reference argument for parameter 'localPath' in 'string Extensions.GetCover(IConfiguration configuration, string localPath, string url)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.