Unable to find type [Microsoft.SharePoint.Publishing.PublishingCache]. Make sure that the as

Question

I am trying to flush cache here,

Add-PSSnapin Microsoft.Sharepoint.Powershell

$webApp = Get-SPWebApplication "https://portal2.zchech.com/"
[Microsoft.SharePoint.Publishing.PublishingCache]::FlushBlobCache($webApp)
Write-Host "Flushed the BLOB cache for:" $webApp

Error

Unable to find type [Microsoft.SharePoint.Publishing.PublishingCache]. Make sure that the assembly that contains this type is loaded. At line:7 char:1 + [Microsoft.SharePoint.Publishing.PublishingCache]::FlushBlobCache($webApp) + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (Microsoft.Share...PublishingCache:TypeName) [], RuntimeException + FullyQualifiedErrorId : TypeNotFound

Answer 1

1) make sure the account that your using has the right privlages to clear the cache.

2) is your blob enabled for the given web application?

goto webapps web.config and look for:

<BlobCache

if enabled=false than set it to true and then performe your powershell code.

3) run powershell as admin, right click powershell rather than double or single click and select run as administrator. This will open it up as admin level. If you have your code within a .ps1 (powershell) file than drag and drop the file into powershell and hit enter, it should then work!

http://technet.microsoft.com/en-us/library/gg277249(v=office.15).aspx