Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-dotnet@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

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

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

Cannot convert null literal to non-nullable reference type.

The variable 'e' is declared but never used

Cannot convert null literal to non-nullable reference type.

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

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

Possible null reference argument for parameter 'value' in 'void Dictionary<int, string>.Add(int key, string value)'.

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