PowerShell 2.0 and “The term 'Param' is not recognized as the name of a cmdlet, function, script file, or operable program”

Question

I am running Windows 7 RTM. PowerShell 2.0 is installed by default. I am using the excellent Windows PowerShell ISE to edit my scripts. I have the following script:

Answer 1

If your param($p) is not the first line in your script that can cause the Param error.

Make sure your param($p) is the first line.

Answer 2

Running this script,

cls

param([string]$Url, [string]$Template="CMSPUBLISHING#0")

Write-Host "Url: $Url"  

I got the same error

The term 'param' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

When I commented out the cls at the top it worked,

#cls 

param([string]$Url, [string]$Template="CMSPUBLISHING#0")

Write-Host "Url: $Url"

Answer 3

Also had this "kind" of problem, but I couldn`t run any of my ps1 scripts. Solution: Change encoding from UTF-8 (or which you have) to ANSI. Perhaps it will help someone too.

Answer 4

I've solved the problem. I've corrected the description of the problem to make it accurate.

The source of the problem is that I was incorrectly using the Param keyword multiple times. The correct usage is to declare multiple parameters within a single Param declaration like the following:

Param($p, $d)

This usage is explained in the Windows PowerShell Help article "about_Functions".