Running the following code produces an error because the variable used for path is resolved as null event though it defined in the script: 

```
$ServerName = "test01"
$RemotePath = "C:\Test\"
$TestScriptBlock = { copy-item -Path $RemotePath  -Destination C:\backup\ -Force -Recurse } 
$CurrentSession = New-PSSession -ComputerName $ServerName

Invoke-Command -Session $CurrentSession -ScriptBlock $TestScriptBlock 

```

How do I call the $RemotePath defined in the parent script from within the ScriptBlock? I need to use $RemotePath in other parts of the parent script. Note, this value doesn't change, so it can be a constant. 

**UPDATE -- WORKING SOLUTION** 

You have to pass in variable as parameter to the scriptblock:

```
$ServerName = "test01"
$RemotePath = "C:\Test\"
$TestScriptBlock = { param($RemotePath) copy-item -Path $RemotePath  -Destination C:\backup\ -Force -Recurse } 
$CurrentSession = New-PSSession -ComputerName $ServerName

Invoke-Command -Session $CurrentSession -ScriptBlock $TestScriptBlock -ArgumentList $RemotePath 

```