# Errore dello script di merge durante la copia dei tag

**URL:** <https://meta.discourse.org/t/merge-script-error-when-copying-tags/97360>\
**Category:** Bug\
**Created:** [15 Settembre 2018, 5:26pm UTC](https://meta.discourse.org/t/merge-script-error-when-copying-tags/97360 "2018-09-15T17:26:16Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![jrgen](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jrgen/32/81165_2.png) [@jrgen](https://meta.discourse.org/u/jrgen)\
**Post date:** [15 Settembre 2018, 5:26pm UTC](https://meta.discourse.org/t/merge-script-error-when-copying-tags/97360/1 "2018-09-15T17:26:16Z")

</div>

Looks like a very cool and useful script, but I encountered an error when I attempted this.  
Any pointers to how I can resolve it? (no ruby experience)  
Error message:

```plaintext
...
copying post_stats...
copying incoming_emails...
copying post_details...
copying post_revisions...
merging tags...
Traceback (most recent call last):
	4: from script/bulk_import/discourse_merger.rb:797:in `<main>'
	3: from script/bulk_import/discourse_merger.rb:65:in `start'
	2: from /home/xxxxx/discourse/script/bulk_import/base.rb:81:in `run'
	1: from script/bulk_import/discourse_merger.rb:81:in `execute'
script/bulk_import/discourse_merger.rb:271:in `copy_tags': undefined method `+' for nil:NilClass (NoMethodError)

```

Using the latest version of Discourse ( v2.2.0.beta2 +5 ) for both the sites.

---

_[View the full topic](https://meta.discourse.org/t/merge-script-error-when-copying-tags/97360)._