The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

The type or namespace name 'LookupCondition' could not be found (are you missing a using directive or an assembly reference?)

Process completed with exit code 1.

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/

'ASCIIString' is obsolete: 'ASCII does not support character validation! Use UTF8 instead'

The type 'T1' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T1' doesn't match 'notnull' constraint.

Nullability of reference types in type of parameter 'value' of 'void BBSerializer<T>.Binder.set' doesn't match implicitly implemented member 'void IFormatter.Binder.set' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'value' of 'void BBSerializer<T>.SurrogateSelector.set' doesn't match implicitly implemented member 'void IFormatter.SurrogateSelector.set' (possibly because of nullability attributes).

'ASCIIString' is obsolete: 'ASCII does not support character validation! Use UTF8 instead'

The type 'T1' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T1' doesn't match 'notnull' constraint.

Nullability of reference types in type of parameter 'value' of 'void BBSerializer<T>.Binder.set' doesn't match implicitly implemented member 'void IFormatter.Binder.set' (possibly because of nullability attributes).