Symptoms
You install Service Pack 1 for Microsoft SQL Server 2014. When you start SQL Server Reporting Services Report Builder, you may receive the following error message:
Cannot Start Application
Application validation did not succeed
System.Deployment.Application.InvalidDeploymentException (HashValidation)
- File, Microsoft.ReportingServices.DataExtensions.dll, has a different computed hash than specified in manifest.
Cause
This issue occurs because the file version of Microsoft.ReportingServices.DataExtensions.dll and Microsoft.ReportingServices.DataRendering.dll were not updated to the latest version number during the installation of SQL Server 2014 Service Pack 1.
Resolution
This problem was first fixed in the following cumulative update for SQL Server 2014:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server 2014:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology Microsoft uses to describe software updates.
