Unity error message during adding this to package manager

[felixf4xu]

Hi,

When I'm trying to add this into unity Package Manger, I got this error:

Library\PackageCache\com.unity.jobs@0.8.0-preview.23\Unity.Jobs\IJobParallelForDefer.cs(77,85): error CS8377: The type 'U' must be a non-nullable value type, along with all fields at any level of nesting, in order to use it as parameter 'T' in the generic type or method 'NativeList<T>'

MapToolbox: git main branch
Unity: 2022.3.3f1c1

[mxpfeng]

我遇到了同样的问题，有人了解如何解决吗？