Why rhevm-log-collector fails with "ERROR: Failed to collect logs from: 10.x.x.x; [Errno 2] No such file or directory"?

Issue

• I did minimal installation of RHEL and installed RHEV-M after that. Running rhevm-log-collector after that failed to collect sosreports from hypervisors with below error.

# rhevm-log-collector --hosts=10.x.x.x
INFO: Gathering oVirt Engine information...
INFO: Gathering PostgreSQL the oVirt Engine database and log files from localhost...
Please provide the REST API password for the admin@internal oVirt Engine user (CTRL+D to skip): 
About to collect information from 1 hypervisors. Continue? (Y/n): Y
INFO: Gathering information from selected hypervisors...
INFO: collecting information from 10.x.x.x
ERROR: Failed to collect logs from: 10.x.x.x; [Errno 2] No such file or directory
INFO: finished collecting information from 10.x.x.x
Creating compressed archive...
INFO: Log files have been collected and placed in /tmp/sosreport-LogCollector-20131004084112.tar.xz.
The MD5 for this file is f93e0dbb4b95c10c69d61c5714267144 and its size is 5.3M