Himmat Singh Dulawat (3x Sitecore MVP)

After upgrading the solution to Sitecore version 10.2, I have started facing the Value that cannot be a null error. More details log and error you can find below: After investigating this issue, I have found that this is a known issue in Sitecore and Sitecore described the solution here Retrieving the child items of resource items is not thread-safe . But as we were on Sitecore XM instead of the XP version, so will it work for XM? Yes, the cumulative hotfix works for XM as well, so do not be confused with it. Note: This hotfix is a Cumulative hotfix and does not use the installation wizard to install it. Such hotfixes are not intended to be installed using the Installation wizard. Instead, you need to refer to the following articles describing by Sitecore, how to install the hotfixes for OnPrem and PaaS instances: Install a Sitecore XP pre-release using SIF Deploy a Sitecore XP pre-release to a PaaS solution But I h

In this blog post, I will discuss how to install the cumulative hotfix on Sitecore OnPrem and PaaS instances. For example, Sitecore provided the Cumulative hotfix for Sitecore XP 10.2  and it's available for both XM and XP 10.2 instances. Usually, to install the hotfix we use the Sitecore installation wizard, but such cumulative hotfixes are not intended to be installed using the Installation wizard. Instead, we need to refer to the following articles describing how to install the hotfixes for OnPrem and PaaS instances: Install a Sitecore XP pre-release using SIF Deploy a Sitecore XP pre-release to a PaaS solution My application has been deployed with Sitecore Managed Cloud Service (Azure PaaS) . I have found that there is less instruction about how to install the cumulative hotfix, so I decided to install it via project solution. Solution: Create one separate project in your solution named SitecoreHotfix