Build failed with exit code 133

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/.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

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

Cannot convert null literal to non-nullable reference type.

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

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

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

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

Missing XML comment for publicly visible type or member 'ProxySettings.ProxySettings(string, string, bool)'

Missing XML comment for publicly visible type or member 'ProxySettings.ProxySettings(string, string, bool)'

Missing XML comment for publicly visible type or member 'ProxySettings.ProxySettings(string, string, bool)'

Missing XML comment for publicly visible type or member 'ProxySettings.ProxySettings(string, string, bool)'