SharePoint 2016: K2 for SharePoint App not available to add under App Catalog - Site Contents
kbt144532
PRODUCTIssue
After successfully running the AppDeployment Installer to add the K2 for SharePoint App to a SharePoint 2016 AppCatalog Site, the K2 for SharePoint App is visible in the AppCatalog under “Apps for SharePoint”. But then when trying to add the App from Site Contents, the K2 for SharePoint App is not displayed.Symptoms
After accessing the "Site Contents" page on the AppCatalog site, the K2 for SharePoint App is not displayed.
The following error is also observer in the SharePoint 2016 ULS logs:
Resolution
For SharePoint 2016 there are both a “language dependent fix” and a separate “language independent fix.”
The issue occurs if one of these SharePoint Cumulative Updates are installed without installing the other.
From the official SharePoint Cumulative Update page:
At time of writing (March 2018), the SharePoint Cumulative Updates are available via the following Microsoft Articles:
Latest Language Independent CU: February 2018 CU for SharePoint Server 2016
Latest Language Dependant CU: January 2018 CU for SharePoint Server 2016