I have rdlc which is built in 2008, now I want to add one new field into in. Currently I am using VS 2019. so, when I run the application, it is throwing error. "The definition of this report is not valid or supported by this version of Reporting Services. The report definition may have been created with a later version of Reporting Services or contain content that is not well-formed or not valid based on Reporting Services schemas. Details: The report definition has an invalid target namespace 'http://schemas.microsoft.com/sqlserver/reporting/2016/01/reportdefinition' which cannot be upgraded." Please help me to resolve this.

The Report Viewer v15 is available as a NuGet package: I suggest that you install it from NuGet and update an existing project to use the Report Viewer v15. For details please refer to the following Microsoft document: Integrate Reporting Services by using the Report Viewer controls - get started Unlike the previous version, it does not use ActiveX for printing. Therefore browser does not have to be IE.

I have rdlc which is built in 2008, Is it really a RDL C , where C stands for client redering, not for SSRS rendering?

The definition of this report is not valid or supported by this version of Reporting Services.

Accepted answer

SurferOnWww 2,816 Reputation points

2024-04-09T07:40:30.15+00:00

The Report Viewer v15 is available as a NuGet package:

I suggest that you install it from NuGet and update an existing project to use the Report Viewer v15. For details please refer to the following Microsoft document:

Integrate Reporting Services by using the Report Viewer controls - get started

Unlike the previous version, it does not use ActiveX for printing. Therefore browser does not have to be IE.
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Rajesh Bargode 20 Reputation points

2024-04-09T09:59:42.5833333+00:00

its giving me below error:

Could not load file or assembly 'Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

SurferOnWww 2,816 Reputation points

2024-04-09T10:40:25.09+00:00

My suggestion is v15 not v11.

Rajesh Bargode 20 Reputation points

2024-04-09T11:06:45.1533333+00:00

Could not load file or assembly 'Microsoft.ReportingServices.ReportViewerControl.WebForms, Version=150.1620.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.

SurferOnWww 2,816 Reputation points

2024-04-09T11:40:46.44+00:00

Did you read "Integrate Reporting Services by using the Report Viewer controls - get started" and try it exactly as stated in it?

Rajesh Bargode 20 Reputation points

2024-04-09T16:18:56.3533333+00:00

This solution worked for me but again the header of the report viewer gets distracted.

see attached image .RDLCHeader.PNG

SurferOnWww 2,816 Reputation points

2024-04-10T01:25:34.91+00:00

What do you mean by "distracted"? In your image attached above It seems to me that the header is shown properly.

Rajesh Bargode 20 Reputation points

2024-04-10T07:21:27.7033333+00:00

RDLCHeader-1.PNG

please see attached image now, the header is showing not in proper way. see the difference.

SurferOnWww 2,816 Reputation points

2024-04-10T07:44:16.46+00:00

I understand that you applied style (css) to the header. Is my understanding correct?

Rajesh Bargode 20 Reputation points

2024-04-10T07:46:51.7366667+00:00

I have not used any css.

Rajesh Bargode 20 Reputation points

2024-04-10T12:20:29.1933333+00:00

The actual design of ReportViewer header section is different with existing one .
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The definition of this report is not valid or supported by this version of Reporting Services.

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