Save as Site Template Error: Error exporting the site field named "HashTags"

Question

I am having an urgent issue

Error exporting the site field named "HashTags"

when saving a site as a template. All fields are created in GUI, no code. I don't have a HashTag field in my site, that I know of. Any idea why this is happening?

It happens regardless of if site content is included or not. Also verified with SharePoint 2013 Manager that no Hashtag field exists - anywhere.

I have checked the ULS log and at first it appears to be related to Oslo template. Something that I haven't customized, and this is a subsite anyway.

I also noticed that there was another error regarding an entry with the same key that seemed suppressed here. Not sure if it's related, but same correllation id:

System.ArgumentException: An entry with the same key already exists.
at System.Collections.Generic.SortedList`2.Add(TKey key, TValue value) at Microsoft.SharePoint.SPSolutionExporter.ExportFields(SPFieldCollection fields, String partitionName)

MDSLog: An error page was detected by MDS: Context Page MP (currentMPToken) = ['|CUSTOMERTEMPLATE:|_LAYOUTS|15|ERRORV15.MASTER:0.15.0.0.0.15.0.4420.1017.4.FALSE.:en-US:en-US:RW'], MP supplied by page in URL (originalMPToken) = ['|CUSTOMERTEMPLATE:|_CATALOGS|MASTERPAGE|OSLO.MASTER:3.15.0.0.0.15.0.4420.1017.4.FALSE.:en-US:en-US:RW'], Current Request URL = ['https://www.xxxxxxx.com/CustomerTemplate/_layouts/15/error.aspx?ErrorText=Error exporting the site field named "HashTags".&ErrorCorrelationId=d3665e9c-c301-007d-53ed-066f93ff2cc7&AjaxDelta=1']

Answer 1

looks like you have two fields within a list that are identical! keys i presume need to be unique!

An entry with the same key already exists

that refers to a duplicate entry: where?

ExportFields(SPFieldCollection fields, String partitionName)

within a field within a list!

whats the name of the field?

HashTags

unfortunatly it doesnt state which list appart from the exception type and field name! so what list i have no idea but atleast you now know that its because of a list on that site with an identical key and the culprit field is called HashTags

have you customised any list? by that i mean have you put a customisation on a list to become sorted?

EDIT

just created this code!

it might be slow in running but it works! create a console app, copy past code in and just change the SPSite url for it to look at the given site:

        using (SPSite mysite = new SPSite("http://YourSiteUrl"))
        {

            using (SPWeb web = mysite.OpenWeb())
            {

                SPListCollection collList = web.Lists;

                foreach (SPList list in collList)
                {
                    foreach (SPListItem item in list.Items)
                    {
                        foreach (SPField field in item.Fields)
                        {
                            if (field.TypeAsString == "HashTags")
                            {
                                var listlocal = list.DefaultDisplayFormUrl;
                                var listName = list.Title;
                                var fld = field.Title;

                                    Console.Out.Write("List Url =" + listlocal);
                                    Console.Out.Write("List name =" + listName);
                                    Console.Out.Write("Field name =" + fld);
                                    Console.Out.WriteLine();
                            }
                        }
                    }
                }
            }

        }

to understand what it refers to when it states keys: SortedList < TKey, TValue >.Add

You can only have one type of key (no duplicates) but you can have multiple duplicate values! : SortedList < TKey, TValue >.Keys

EDIT

forgot to add console.read!

   static void Main(string[] args)
    {

        using (SPSite mysite = new SPSite("http://yourTestSite"))
        {

            using (SPWeb web = mysite.OpenWeb())
            {

                SPListCollection collList = web.Lists;

                foreach (SPList list in collList)
                {
                    foreach (SPListItem item in list.Items)
                    {
                        foreach (SPField field in item.Fields)
                        {
                            if (field.TypeAsString != "HashTags")
                            {
                                var listlocal = list.DefaultDisplayFormUrl;
                                var listName = list.Title;
                                var fld = field.Title;

                                    Console.Out.Write("List Url =" + listlocal);
                                    Console.Out.Write("List name =" + listName);
                                    Console.Out.Write("Field name =" + fld);
                                    Console.Out.WriteLine();
                            }
                        }
                    }
                }
            }

        }
        Console.Read();
    }

EDIT

somthing is wrong with your sever to bring that error :s , but did find a solution to your origonal question tho!

the solution is from here.

Solution:

download sharepoint manager 2013.

goto parent site then look for Fields and deleted the HashTags field.

Answer 2

This ist the trouble and solution

https://support.microsoft.com/en-us/help/4341276/cannot-create-a-new-site-based-on-a-site-template-in-sharepoint-online