There can be no inter-package/inter-component dependency cycle.
Dependency cycles between Packages and Components should be avoided as these are not good design practice.
For example, a Package P1 depends on another one P2 if one class on P1 derives, imports, or has an association towards a class of P2.
If you have dependency cycles between packages or components, you should review your design.
Use the Impact Diagram of the Analyst module to get a global view of dependencies.