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

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

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

Dereference of a possibly null reference.

Possible null reference assignment.

Possible null reference argument for parameter 'second' in 'IEnumerable<Module> Enumerable.Concat<Module>(IEnumerable<Module> first, IEnumerable<Module> second)'.

Possible null reference argument for parameter 'second' in 'IEnumerable<Module> Enumerable.Concat<Module>(IEnumerable<Module> first, IEnumerable<Module> second)'.

The switch expression does not handle some values of its input type (it is not exhaustive) involving an unnamed enum value. For example, the pattern '(Modulhandbuch.Shared.Turnus)7' is not covered.

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

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