Error in serialization when open report

[Gabriele]

When I start the telerik report designer I get this error message:

Clicking ok opens the designer but in the main screen I see:

Telerik.Reporting.Xml.XmlSerializerExcepion: An error has occurred during xml serialization. The xml serializer cannot resolve type with name: Report
   at Telerik.Reporting.Xml.ObjectXmlReader.ReadXmlElement(String name)
   at Telerik.Reporting.Xml.ObjectXmlReader.Deserialize()
   at Telerik.ReportDesigner.Packages.ReportDesigner.Serialization.ReportDesignerLoader.ReadReport()
   at Telerik.ReportDesigner.Packages.ReportDesigner.Serialization.ReportDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)

I don't think this error is related with a particular report because it shows every time I open the software.

I used the designer just few days ago and worked perfectly, what can I do? Thanks

 

[Plamen Mitrev]

Hello Gabriele,

From the description and the error message, I assume that there is a mismatch of the Telerik Reporting versions 12.0.18.227 and 7.1.13.621. The encountered issue is most likely due to this interference. My suggestion is to try the possible solutions to uninstalling older versions described in the Reporting install/update/uninstall fails forum thread.

For example, you may try with the Windows App remover.

You may also download the MSI file for the Telerik Reporting version that you have a license for, from license holder's Telerik account, run it and select uninstall or repair. Alternatively, you can uninstall all instances of Telerik Reporting and perform a fresh installation from the MSI file.

I hope the above suggestions will help. Let me know if you have further questions or need additional guidance.

Regards,
Plamen Mitrev
Progress Telerik