The report could have existed on the report server before the upgrade, or the report could have been uploaded via Report Manager or published to the report server from Report Designer in SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, or SQL Server 2014 SQL Server Data Tools.The following table lists the upgrade action that is performed by the report server for specific types of CRIs in a report.A report definition file includes a reference to the RDL namespace that specifies the version of the report definition schema that is used to validate the file.
When a report contains subreports, one of four possible states can occur during upgrade: SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, or SQL Server 2014 Reporting Services reports might contain custom report items (CRIs) provided by third-party software vendors and installed by the system administrator on the report authoring computer and the report server.
Reports that contain CRIs can be upgraded in the following ways: The first time a SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, or SQL Server 2014 Reporting Services report runs on a report server that has been upgraded to a SQL Server 2016 Reporting Services (SSRS) report server, the report is automatically upgraded to the current report definition namespace supported by the report server.
Sometimes that works (for me), and sometimes it doesn't.
Yep, that post (thread) is dealing with the same problem (or at least a similar one).
Note Choosing to support custom report items on a report server is a decision made by the system administrator.
To view CRIs in a report, the CRI components must be installed on the report authoring client to preview a report and on the report server to view a published or uploaded report.
For more information, see Custom Report Items and documentation from the third-party software vendor.
Upgrade and Migrate Reporting Services Breaking Changes in SQL Server Reporting Services in SQL Server 2016Behavior Changes to SQL Server Reporting Services in SQL Server 2016Discontinued Functionality to SQL Server Reporting Services in SQL Server 2016Custom Report Items Upgrade a Report Server Database More questions?
The report server stores the report definition file in the original format.