• Kentico 12 to Kentico 13 Upgrade
    Question Nov 7, 2024
    After several attempts, I successfully completed the upgrade for the admin site. However, for the MVC site (where I removed the Kentico 12 NuGet packages and installed the Kentico 13 NuGet packages), I am encountering errors related to Dynamic Routing and Partial Pages. Despit...

  • RE:Invalid viewstate.
    Forum Post Jul 10, 2012
    Was it the Machine Key causing the problem?

  • Admin site issues after migration to K13 from K12
    Question Nov 14, 2024
    after migrating from Kentico 12 to Kentico 13, I encountered a couple of errors when attempting to make changes to the Sites section, as well as when trying to save the page type objects. Please see the error details below. Any suggestions or insights would be greatly apprecia...

  • Invalid CMS admin url
    Question Jul 24, 2024
    Hi, I have set up the website on a new server. When I load the site it's asking me to enter the new licence key. (This site was done with Kentico 11)![Image Text](https://booksellerevents.org.uk/) When I click on licenses it re-directs to admin area of another website which ...

  • Url.Action(), or UrllHelper.Action() is returning invalid url after upgrading to Kentico 13 from Ken
    Question Apr 4, 2024
    We have an application that was on Kentico 12 MVC, which has been upgraded to K13.0.136 Recently. Everything works fine except everywhere the Url.Action method was used to render the URL Here's a sample example @Url.Action(blog.NodeAlias, "Blog"); The above code is supposed...

  • Event log source Microsoft.AspNetCore.Server.IIS.Core.IISHttpServer with Invalid URI
    Question Mar 7, 2025
    I am getting the following event log error on a production site. This does not occur on any other environment (dev, QA or stage). It occurs almost every day if not every day. Sometimes it's once a day, other times it is a couple dozen times. Sometimes it will occur every f...

  • Custom React Component Error
    Question Feb 13, 2024
    Hi All, I'm trying to get the provided ColorSelector form component working in XbyK [Color Selector Documentation](https://docs.xperience.io/xp/developers-and-admins/customization/extend-the-administration-interface/ui-form-components/example-color-selector-ui-form-component) ...

  • Email queue not sending emails after upgrade from Kentico 10 to 12
    Question Jul 18, 2024
    Hi, My company upgraded to Kentico 12 from Kentico 10 and since then the email notification system has stopped working. The emails end up in the email queue without being sent. Without changing any of the default SMTP server settings in settings -> system -> emails, the err...

  • Xperience by Kentico setup can't create database
    Question Jul 30, 2024
    Hi, I am trying to follow the Xperience by Kentico tutorial: https://docs.kentico.com/tutorial/developer-tutorial/set-up-an-xperience-by-kentico-project. But I got error when executing this command: dotnet kentico-xperience-dbmanager Error installing the database Query: ...

  • Invalid length for a Base-64 char array or string
    Question Sep 3, 2014
    Throughout my site, regardless of the page templates and document types, we are getting either an Invalid Viewstate error or Invalid Length for a Base-64 char array or string. These are pages that have every web part with viewstate turned off except for a single web part on th...

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