Possible null reference argument for parameter 'value' in 'bool string.StartsWith(string value)'.

Possible null reference return.

Possible null reference argument for parameter 'file' in 'LspIndentationStrategy.LspIndentationStrategy(TextEditorOptions options, LanguageService languageS, IFile file)'.

Possible null reference argument for parameter 'file' in 'LspFoldingStrategy.LspFoldingStrategy(LanguageService ls, IFile file)'.

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

Possible null reference assignment.

Possible null reference assignment.

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

Argument of type 'KeyValuePair<int, Control>' cannot be used for parameter 'item' of type 'KeyValuePair<int, Control?>' in 'void List<KeyValuePair<int, Control?>>.Add(KeyValuePair<int, Control?> item)' due to differences in the nullability of reference types.