power vc安装报错缺失rpm包

power vc安装报错缺失python-twisted-web和python-pyasn1-modules包

---> Package python-six.noarch 0:1.9.0-1.ibm.el7 will be an update

---> Package python-sqlalchemy.x86_64 0:1.0.8-1.ibm.el7 will be installed

---> Package python-sqlparse.noarch 0:0.1.14-1.ibm.el7 will be installed

---> Package python-tempita.noarch 0:0.5.1-6.el7 will be installed

--> Finished Dependency Resolution

Error: Package: ibmpowervc-prerequisites-1.3.0.0-1.x86_64 (powervc-x86_64)

           Requires: python-twisted-web

Error: Package: ibmpowervc-prerequisites-1.3.0.0-1.x86_64 (powervc-x86_64)

           Requires: python-pyasn1-modules

You could try using --skip-broken to work around the problem

You could try running: rpm -Va --nofiles --nodigest

The set of prerequisite packages failed to install.

Review the log file for relevant yum errors: /opt/ibm/powervc/log/powervc_install_2016-04-15-103042.log

The installation has exited with error code 102.