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I'm attempting to create a feature stapled solution that pushes out custom branding to every new site collection created. The following code is in my event receiver: 

    public override void FeatureActivated(SPFeatureReceiverProperties properties)
    {
        using(SPSite sitecollection = properties.Feature.Parent as SPSite)
        {
            using (SPWeb site = sitecollection.OpenWeb())
            {
                foreach (SPWeb web in sitecollection.AllWebs)
                {
                    try
                    {
                        SPList list = web.Lists.TryGetList("Composed Looks");
                        foreach (SPListItem item in list.Items)
                        {
                            if(item.Title != "Current" || item.Title != "Dynetics")
                            {
                                item.Delete();
                                item.Update();
                            }
                        }
                    }
                    finally
                    {
                        if(web != null)
                        {
                            web.Dispose();
                        }
                    }
                }
            }
        }
    }

But when deploying the solution I get the error: 

Error occurred in deployment step 'Activate Features': Item does not exist. It may have been deleted by another user.

WHY??

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1 Answer 1

Reset to default
2

By looking into your code, i think the problem is 

item.Delete();
item.Update();

You are updating item after you are deleting, there is no need to update the item after delete.

You can not update a deleted item.

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7
  • Ok that got rid of the original error, but now I receive: Collection was modified; enumeration operation may not execute.
    – psdpainter
    May 28, 2014 at 17:08
  • use for (int i = items.Count - 1; i >= 0; i--) { SPListItem item = items[i]; item.Delete(); }
    – Aanchal
    May 28, 2014 at 17:21
  • you are getting this error because You can not modify a collection while enumerating it because the iterator will reset and you will have exception.I
    – Aanchal
    May 28, 2014 at 17:23
  • Or you can maintain a list of listitems to delete and delete them one by one after your foreach statement.
    – Aanchal
    May 28, 2014 at 17:27
  • Tremendously helpful, Aanchal. Thank you very much. This solved the problem
    – psdpainter
    May 28, 2014 at 17:33

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