系统更新，不能解决包依赖性问题

报出的错误如下：

Missing Dependency: popt = 1.10.2.3-20.el5_5.1 is needed by package rpm-4.4.2.3-20.el5_5.1.i386 (installed)
Missing Dependency: perl(Win32) is needed by package perl-libwww-perl-5.826-1.el5.test.noarch (rpmforge-testing)
Missing Dependency: popt = 1.10.2.3-20.el5_5.1 is needed by package rpm-devel-4.4.2.3-20.el5_5.1.i386 (installed)
Missing Dependency: popt = 1.10.2.3-20.el5_5.1 is needed by package rpm-python-4.4.2.3-20.el5_5.1.i386 (installed)
Missing Dependency: perl(HTTP::GHTTP) is needed by package perl-libwww-perl-5.826-1.el5.test.noarch (rpmforge-testing)
Missing Dependency: popt = 1.10.2.3-20.el5_5.1 is needed by package rpm-libs-4.4.2.3-20.el5_5.1.i386 (installed)
Missing Dependency: popt = 1.10.2.3-20.el5_5.1 is needed by package rpm-build-4.4.2.3-20.el5_5.1.i386 (installed)

我的源中却有这个。