; Circular dependencies: If appX, version 1 depends on app2, which depends on app3, which depends on app4, which depends on the original appX, version 0, then, in systems such as RPM or dpkg, the user must install all packages simultaneously.
: If appX, version 1 depends on app2, which depends on app3, which depends on app4, which depends on the original appX, version 0, then, in systems such as RPM or dpkg, the user must install all packages simultaneously.