# Converting a topic to a wiki returns a 500 error
**URL:** https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660
**Category:** Bug
**Created:** [2017年九月24日 05:19 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660 "2017-09-24T05:19:07Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@southpaw](https://meta.discourse.org/u/southpaw)
#### Post date: [2017年九月24日 05:19 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/1 "2017-09-24T05:19:07Z")
Discourse 1.9.0.beta8
Steps to reproduce:
Create a topic
Covert the topic to a Wiki with the “Make Wiki” option.
If it does load after converting to Wiki, refresh the page.
Result:
The topic appears in activity feeds:
Clicking it in the activity feed results in:
Error logs:
2
OpenSSL::PKey::RSAError (Neither PUB key nor PRIV key: nested asn1 error) /var/www/discourse/app/controllers/user\_api\_keys\_controller.rb:138:in `initialize’
12:08 am
5
NoMethodError (undefined method `updated_at' for nil:NilClass) /var/www/discourse/app/serializers/post_serializer.rb:358:in `last\_wiki\_edit’
12:59 am
10
NoMethodError (undefined method `updated_at' for nil:NilClass) /var/www/discourse/app/serializers/post_serializer.rb:358:in `last\_wiki\_edit’
1:02 am
38
NoMethodError (undefined method `updated_at' for nil:NilClass) /var/www/discourse/app/serializers/post_serializer.rb:358:in `last\_wiki\_edit’
(Please let me know if you need the specifics from any of those errors. I had included them, but exceeded a character limit for the post.)
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [2017年九月26日 02:46 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/5 "2017-09-26T02:46:46Z")
So far we cannot reproduce this?
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### Author:  [@southpaw](https://meta.discourse.org/u/southpaw)
#### Post date: [2017年九月26日 03:17 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/6 "2017-09-26T03:17:15Z")
Thank you for trying.
Is there a bug log that would help at all?
Perhaps one of the Discourse team members who has access to our site could try reproducing it in our [Staff category](https://forums.republicwireless.com/c/insiders/staff)?
I was able to reproduce it in that category both times that I tried. Those two inaccessible Wikis are:
[https://forums.republicwireless.com/t/testing-a-wiki-for-500-error/12875/1](https://forums.republicwireless.com/t/testing-a-wiki-for-500-error/12875/1)
and
[https://forums.republicwireless.com/t/repeating-the-wiki-500-test-filing-bug-report-w-discourse/12879/1](https://forums.republicwireless.com/t/repeating-the-wiki-500-test-filing-bug-report-w-discourse/12879/1)
---
### Author:  [@techAPJ](https://meta.discourse.org/u/techAPJ)
#### Post date: [2017年九月26日 04:10 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/9 "2017-09-26T04:10:17Z")
Hi @southpaw,
I think I may be able to repro and fix this issue. Added on my list to look into.
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### Author:  [@techAPJ](https://meta.discourse.org/u/techAPJ)
#### Post date: [2017年九月26日 15:47 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/10 "2017-09-26T15:47:39Z")
@zogstrip already fixed this issue 13 days ago via:
[https://github.com/discourse/discourse/commit/a6fc42753cd4505aae771416373da0f61ac72487](https://github.com/discourse/discourse/commit/a6fc42753cd4505aae771416373da0f61ac72487)
@southpaw I deployed the above fix on your site and both the topics are loading fine now.
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### Author:  [@techAPJ](https://meta.discourse.org/u/techAPJ)
#### Post date: [2017年九月26日 16:18 UTC](https://meta.discourse.org/t/converting-a-topic-to-a-wiki-returns-a-500-error/70660/12 "2017-09-26T16:18:05Z")