Cluvfy error : Framework setup check failed on all the nodes


As you know Oracle recommends  before installation Oracle Real Application Clusters 11g Release 2 run Cluster Verification utility with  stage previous and post installation cluster ware or database.

Cluster verification utility help you for getting error before and  after installation Oracle Grid Infrastructure and Real Application Clusters Database.

I getting following error : 

[grid@oel62-rac1 grid]$ ./runcluvfy.sh stage -pre crsinst -n oel62-rac1,oel62-rac2 –verbose
Checking user equivalence...
Check: User equivalence for user "grid"
  Node Name                             Status                 
  ------------------------------------  ------------------------   oel62-rac2                            passed                    oel62-rac1                            passed              

Result: User equivalence check passed for user "grid"
Verifying node connectivity Version of exectask could not be retrieved from node "oel62-rac2" Version of exectask could not be retrieved from node "oel62-rac1"
ERROR: Framework setup check failed on all the nodes
First call of Cluster Verification Utility (runcluvfy.sh) shall  create a folder /tmp/CVU_11.[grid|oracle|resource|...]. This folders contains shell scripts as fixup.sh. solved my problem with remove /tmp/CVU_11.* folders both nodes.
How to I got this error ?
I  using Oracle VM Virtualbox as my test environment. I  create a virtual machine, preparing this machine for installation (network settings, required packages, users, groups, system  configurations) Oracle RAC. After completion preparation I cloning this virtual machine for second node. Before clone of machine I called a time Cluster Verification Utility. First time of call Cluster Verification Utility created a temporary folder   with name /tmp/CVU_11. If this folder is copied from first node to second node then you can get error Framework setup check failed on all the nodes.
Mahir M. Quluzade