we keep getting the following error in vdsm automation

12:16:47 + lago start vdsm_functional_tests_host-fc23
12:16:49 current session does not belong to lago group.
12:16:49 @ Start specified VMs: 
12:16:49   # Start nets: 
12:16:49     * Create network vdsm_functional_tests_lago: 
12:16:50     * Create network vdsm_functional_tests_lago: Success (in 0:00:00)
12:16:50   # Start nets: Success (in 0:00:00)
12:16:50   # Start vms: 
12:16:50     * Starting VM vdsm_functional_tests_host-fc23: 
12:16:50 libvirt: QEMU Driver error : Cannot check QEMU binary /usr/libexec/qemu-kvm: No such file or directory
12:16:50     * Starting VM vdsm_functional_tests_host-fc23: ERROR (in 0:00:00)
12:16:50   # Start vms: ERROR (in 0:00:00)
12:16:50   # Destroy network vdsm_functional_tests_lago: 
12:16:50   # Destroy network vdsm_functional_tests_lago: ERROR (in 0:00:00)
12:16:50 @ Start specified VMs: ERROR (in 0:00:00)
12:16:50 Error occured, aborting
12:16:50 Traceback (most recent call last):
12:16:50   File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 661, in main
12:16:50     cli_plugins[args.verb].do_run(args)
12:16:50   File "/usr/lib/python2.7/site-packages/lago/plugins/cli.py", line 180, in do_run
12:16:50     self._do_run(**vars(args))
12:16:50   File "/usr/lib/python2.7/site-packages/lago/utils.py", line 501, in wrapper
12:16:50     return func(*args, **kwargs)
12:16:50   File "/usr/lib/python2.7/site-packages/lago/utils.py", line 512, in wrapper
12:16:50     return func(*args, prefix=prefix, **kwargs)
12:16:50   File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 234, in do_start
12:16:50     prefix.start(vm_names=vm_names)
12:16:50   File "/usr/lib/python2.7/site-packages/lago/prefix.py", line 778, in start
12:16:50     self.virt_env.start(vm_names=vm_names)
12:16:50   File "/usr/lib/python2.7/site-packages/lago/virt.py", line 193, in start
12:16:50     vm.start()
12:16:50   File "/usr/lib/python2.7/site-packages/lago/virt.py", line 910, in start
12:16:50     self._env.libvirt_con.createXML(self._libvirt_xml())
12:16:50   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3611, in createXML
12:16:50     if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
12:16:50 libvirtError: Cannot check QEMU binary /usr/libexec/qemu-kvm: No such file or directory

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