Process completed with exit code 1.

Use 'string.Contains(char)' instead of 'string.Contains(string)' when searching for a single character

'string.Contains(string)' has a method overload that takes a 'StringComparison' parameter. Replace this call in 'Gu.Wpf.DataGrid2D.UiTests.ItemsSourceTests.CellTemplate.CellTemplateTest(string)' with a call to 'string.Contains(string, System.StringComparison)' for clarity of intent.

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'component' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).