Column ContentType does not exist.It may have been deleted by another user while adding/updating the list item

Question

Need some taughts/help here.

I have taken the list template from WSS 2007 and then uploaded the same to the SharePoint 2013. That too after changing the ProductVersion from 3 to 4. After the list was successfully created using the same template,when am trying to add / edit the list item I got this error. “Column ‘ContentType’ does not exist.It may have been deleted by another user.”

I have created a Contentype column as suggested in blogs but this only works if i create a new item and then try to save or edit it

but doesnt work on exisitng items that that was created using the template.

I can view item but when i click edit i get this error:

Application error when access /sites/dev/Lists/xxx/EditForm.aspx, Error=Value cannot be null.   at Microsoft.SharePoint.Utilities.SPUtility.GetProviderName(String fullName)     at Microsoft.SharePoint.Administration.Claims.SPClaimEncodingManager.IsEncodedClaim(String value)     at Microsoft.SharePoint.WebControls.PickerEntity.get_Claim()

Any help will be appreciated

Answer 1

There are 2 ways to resolve this issue:

1. Enable "Allow Content type" in list settings
2. Create a SLT named ContentType and then hid it from all the forms if necessary