How to de-serialize sitecore item with powershell console

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C++98

Hey!
I want to deserialize sitecore item using PowerShell Console, I tried using below script

PS:master:\>deserialize-item -path "C:\Users\naveen_s\Desktop\serialization\serialization\master\sitecore\sytem\Modules" -root "C:\Users\naveen_s\Desktop\serialization\serialization\" -recurse

under modules path I have an Item as well as sub folder under that again I have an Item.

So, using recurse I try to deserialize the data for childs also.

I refereed below link http://www.cognifide.com/blogs/sitecore/serialization-and-deserialization-with-sitecore-powershell-extensions/#.VgQMncuqqko

but, I'm getting error like below after execute the above script in power shell console in sitecore.

Error details:

Hide   Copy Code
writeErrorStream      : True
Exception             : System.Exception: path is not under the root
                           at Sitecore.Data.Serialization.Manager.LoadTree(String path, LoadOptions options)
                           at Cognifide.PowerShell.Commandlets.Serialization.ImportItemCommand.Deserialize(String path)
                           at Cognifide.PowerShell.Commandlets.Serialization.ImportItemCommand.ProcessRecord()
                           at System.Management.Automation.CommandProcessor.ProcessRecord()
TargetObject          :
CategoryInfo          : NotSpecified: (:) [Import-Item], Exception
FullyQualifiedErrorId : System.Exception,Cognifide.PowerShell.Commandlets.Serialization.ImportItemCommand
ErrorDetails          :
InvocationInfo        : System.Management.Automation.InvocationInfo
ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1
PipelineIterationInfo : {}
PSMessageDetails      :

What I have tried:

de-serialize sitecore item with Powershell console