Cancel all workflows in entire site collection and subsites

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  Hi All,

  I have below script to use and achieve the title but i am getting error message:

  +++++++++++++++++++++++++++++++++++++++++++++

  Add-pssnapin "Microsoft.SharePoint.PowerShell"
  $site = Get-SPSite "Site_Collection_URL";
  
  $site.AllWebs | foreach {
    $web = $_;
    $web.AllowUnsafeUpdates = $true;
  
    # stop list workflows
    $web.Lists | foreach {
      $list = $_;
      $list.Items | foreach {
        $item = $_;
        $item.Workflows | foreach {
           $wf = $_;
           [Microsoft.SharePoint.Workflow.SPWorkflowManager]::CancelWorkflow($wf);
        }
      }
    }
  
    # stop site workflows
    $web.Workflows | foreach {
      $wf = $_;
      [Microsoft.SharePoint.Workflow.SPWorkflowManager]::CancelWorkflow($wf);
    }    
  
    $web.AllowUnsafeUpdates = $false;
    $web.Dispose();
  }
  
  $site.Dispose();

  +++++++++++++++++++++++++++++++++++++

  Error message is:

  An error occurred while enumerating through a collection: Collection was modified; enumeration operation may not execute..
  At E:\Scripts\Cancel_workflows2.ps1:9 char:3
  +   $web.Lists | foreach {
  +   ~~~~~~~~~~~~~~~~~~~~~~
      + CategoryInfo          : InvalidOperation: (Microsoft.Share...on+SPEnumerator:SPEnumerator) [], RuntimeException
      + FullyQualifiedErrorId : BadEnumeration

  ---

  MCP & MCTS [WSS 3.0/MOSS/SharePoint 2010] Visit: http://yagyashree.wordpress.com/

  • Changed type Bill_Stewart Wednesday, December 7, 2016 11:02 PM
  • Moved by Bill_Stewart Wednesday, December 7, 2016 11:02 PM This is not "fix/debug/rewrite/add feature(s) to this script I found on the Internet" forum

  Monday, October 31, 2016 12:27 PM