PowerCLI may send warnings when accessing the deployment executable file. Depending on the warning, it may not be relevant or cause issues. In vSphere PowerCLI 6.0 and later, the following warnings may appear repeatedly, but should not cause an issue:
WARNING: The version of VMware Tools on VM version number is out of date and may cause Invoke-VMScript to work improperly.
WARNING: Parameter ‘VM’ is obsolete. Passing multiple values to this parameter is obsolete.