'MdlStructs.ShapeValueStruct' does not contain a definition for 'BaseIndicesIndex'

'MdlStructs.ShapeValueStruct' does not contain a definition for 'BaseIndicesIndex' and no accessible extension method 'BaseIndicesIndex' accepting a first argument of type 'MdlStructs.ShapeValueStruct' could be found (are you missing a using directive or an assembly reference?)

'MdlStructs.ShapeValueStruct' does not contain a definition for 'ReplacingVertexIndex'

'MdlStructs.ShapeValueStruct' does not contain a definition for 'ReplacingVertexIndex' and no accessible extension method 'ReplacingVertexIndex' accepting a first argument of type 'MdlStructs.ShapeValueStruct' could be found (are you missing a using directive or an assembly reference?)

'MdlStructs.ShapeMeshStruct' does not contain a definition for 'MeshIndexOffset' and no accessible extension method 'MeshIndexOffset' accepting a first argument of type 'MdlStructs.ShapeMeshStruct' could be found (are you missing a using directive or an assembly reference?)

Operator '==' cannot be applied to operands of type 'method group' and 'int'

'T' does not contain a definition for 'BaseIndicesIndex' and no accessible extension method 'BaseIndicesIndex' accepting a first argument of type 'T' could be found (are you missing a using directive or an assembly reference?)

'T' does not contain a definition for 'ReplacingVertexIndex' and no accessible extension method 'ReplacingVertexIndex' accepting a first argument of type 'T' could be found (are you missing a using directive or an assembly reference?)

'MdlStructs.ShapeValueStruct' does not contain a definition for 'BaseIndicesIndex'

'MdlStructs.ShapeValueStruct' does not contain a definition for 'ReplacingVertexIndex'

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, actions/setup-dotnet@v1. 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. 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.

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.

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

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.