Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions/setup-dotnet@v1, JamesIves/[email protected]. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-dotnet@v1, JamesIves/[email protected]. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Cannot convert null literal to non-nullable reference type.

Possible null reference assignment.

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

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

Possible null reference return.

Possible null reference argument for parameter 'defaultIfEmpty' in 'SparseMatrixStoreByRows<T>.SparseMatrixStoreByRows(T defaultIfEmpty)'.

Possible null reference argument for parameter 'defaultValueIfEmpty' in 'SparseList<T>.SparseList(T defaultValueIfEmpty)'.

Possible null reference return.

Dereference of a possibly null reference.