Fix for stsadm export: An item with the same key has already been added

Question

Current Issue:

When performing an export on a web I get the following error:

STSADM.EXE : An item with the same key has already been added.

I have tried checking in and checking out the file. But soon after I read changing the ID even will not help so I did not continue with this. Also, I get this error on 4 seperate sibling subwebs that I attempt. How can I fix this issue?

Overall Goal

I am trying to move a 200+gb web (and subs) from one site collection to another. This web includes around 30 subwebs at various levels. Some which are Publishing some which are not. I did not use Backup/Import because I read you cannot do it when a site collection is >15gb. Please note that although I am trying to take a web, it is at level 2 so I am not opposed to copying the entire site collection. I hope to use powershell/visual studio/MS tools. If there is a db level solution that works as well.

Please help!

Answer 1

Turned out only exporting the LastMajorandMinor versions as opposed to all solved this.

Answer 2

as far as i know if your web is greater than 25 MB it will not work. What version of SHarePoint are u using? with what Service Pack.

There is other way is to use SPD backup and restore. I have tried this one when export/import stsadm fails and it will work fine.

Again you need to consider the limitation of export and import cmd when you moving big chunck.

There are few other utilities available like Gary Lapointe stsadm cmd, spcontent deployment tool.

Let me know how you go with SPD backup/restore.