Yes. DNN Platform is a free, open-source CMS under the MIT License.

What is the tech stack for DNN?

DNN runs on ASP.NET (.NET Framework 4.8+) with Microsoft SQL Server (2017+ or Azure SQL).

DNN Platform is community-led and a member project of the .NET Foundation.

What’s the difference between DNN and Evoq?

DNN Platform is the open-source core that's been wildly popular and adopted for over 20 years. Evoq is a commercial offering maintained by DNN Software (IgniteTech) that builds on DNN.

DNN Forums

Ask questions about your website to get help learning DNN and help resolve issues.

Errors when trying to attempt to upgrade to vers. 10.2.1

5 Replies

1 Subscribed to this topic

33 Subscribed to this forum

Sort:

Author

Messages

alexismaria

Growing Member

Posts: 35

New Poster

1/28/2026 2:52 PM

Just wondering what this error message means when attempting to upgrade to version 10.2.1 from 9.13.9:

The error that appears in the log "The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)"

For this website: https://journal.nafo.int

Any suggestions to get this up to version 10 + is welcome. Not sure what this error means.

Daniel Valadas

Veteran Member

Posts: 349

Helpful Replier

MVP

Engaged Reader

Avid Reader

1/28/2026 10:06 PM

Well, we can't just know with this little information. Either the theme or a module on the page causes such issue. You need to maybe create a new page with the default theme and then slowly put things on it from the problematic page until it causes the issue to get some clue as to what could cause it.

David Lee

Advanced Member

Posts: 207

Helpful Replier

MVP

New Poster

1/29/2026 3:05 AM

First thing to look at is the google maps being loaded as http.

http://maps.google.com/ma...api/js?sensor=false'
should be
https://maps.google.com/m...api/js?sensor=false'

But this is not a upgrade issue for DNN10, this was probably not adjusted when the SSL cert was add.

David Lee

Advanced Member

Posts: 207

Helpful Replier

MVP

New Poster

1/29/2026 3:09 AM

Oh, I see you're not auto redirecting to http... you should, there is an option in DNN to do that.

Looks like your skin is missing
http://journal.nafo.int/P...n-scripts.js?cdv=455
http://journal.nafo.int/P.../pace.min.js?cdv=455

check those exist. It might just be you need to upgrade the skin.

Of course if you have other errors, please post them so we can understand better.

Johnhols

New Around Here

Posts: 25

Helpful Replier

New Poster

2/4/2026 6:29 AM

Might be the problem with the skinpath that i had https://dnncommunity.org/...nclude-and-skinpath/

alexismaria

Growing Member

Posts: 35

New Poster

2/10/2026 8:21 AM

Thanks everyone for your input. Our developer was able to get this website upgraded to 10.2.1, and I have updated the skin, although I'll have to reach out to the vendor for clean-up on the module we are using.

These Forums are for the discussion of the open source CMS DNN platform and ecosystem.

For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines:

If you have (suspected) security issues, please DO NOT post them in the forums but instead follow the official DNN security policy.
No Advertising. This includes the promotion of commercial and non-commercial products or services which are not directly related to DNN.
No vendor trolling / poaching. If someone posts about a vendor issue, allow the vendor or other customers to respond. Any post that looks like trolling / poaching will be removed.
Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.
No Flaming or Trolling.
No Profanity, Racism, or Prejudice.
Site Moderators have the final word on approving / removing a thread or post or comment.
English language posting only, please.

Would you like to help us?

Awesome! Simply post in the forums using the link below and we'll get you started.

Get Involved