The permission level cannot be retrieved because neither the All parameter nor the TargetType and TargetName parameters were ...

The permission level cannot be retrieved because neither the All parameter nor the TargetType and TargetName parameters were provided. Specify the All parameter to retrieve the permission level for each security principal on the GPO. Or, specify the TargetName and TargetType parameters together to retrieve the permission level for a single security principal. Then, run the command again.