Non-nullable property 'Tag' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference argument for parameter 'key' in 'Entry SafeDictionary<string, Entry>.this[string key]'.

Non-nullable property 'Tag' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference argument for parameter 'key' in 'Entry SafeDictionary<string, Entry>.this[string key]'.

Non-nullable property 'Tag' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference argument for parameter 'key' in 'Entry SafeDictionary<string, Entry>.this[string key]'.

Non-nullable property 'Tag' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference argument for parameter 'key' in 'Entry SafeDictionary<string, Entry>.this[string key]'.

Non-nullable property 'Tag' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.