包冲突

When you add a package to a Project manifest, Unity considers that package a dependency of the Project. However, a package can also have dependencies on other packages, which might create indirect dependencies in a Project that uses this package.

In this example, if you install Package A and Package B in your Project, then your Project has direct dependencies on both Package A and Package B. However, if Package B also has a dependency on Package C, then your Project also has an indirect dependency on Package C.

A conflict exists when a Project has dependencies on a package with different versions. A conflict can only exist between two indirect dependencies, when neither is added explicitly in the dependencies of the Project’s manifest file.

为了解决包冲突，Unity 会考虑发生冲突的包的版本号以及根部与包之间的依赖关系层级数。如果您希望使用包的其他版本，也可以覆盖 Unity 的解决方法。