SAP Knowledge Base Article - Public

1528503 - CRVS2010 - Microsoft JScript runtime error: 'Sys.Application' is null or not an object

Symptom

  • Running a web application with the Crystal Reports viewer on a Master page
  • Results in the error: 'Sys.Application' is null or not an object
  • The error occurs in the crv.js file at:
If(Typeof(Sys)! == 'undefined') {
Sys.Application.notifyScriptLoaded();
}
  • This error occurs at compile time and can be ignored

         



Environment



   
    

  • Microsoft Visual Studio .NET 2010
    • 

  • Crystal Reports 2010 for VS 2010
    • 







Reproducing the Issue



   
    

  • Create a new Web project in VS 2010
    • 

  • Add the Crystal Reports for VS 2010 viewer to a Master Page
    • 

  • Run this project
    • 







Cause



   
    

  • Microsoft AJAX controls are interfering with the Viewer rendering
    • 

  • Note that if an .aspx page has other .NET controls that use Microsoft AJAX, then this error will occur
    • 







Resolution



   
    

  • Open the js file and find the last "if" statement in the file
    • 

  • Modify the crv.js file so it reads;
    • 



if(typeof(Sys) !== 'undefined' && typeof(Sys.Application) !== 'undefined') {
Sys.Application.notifyScriptLoaded();
}


    

  • Note that there are two crv.js files and both must be modified:
    • 



C:\Windows\Microsoft.NET\Framework\v4.0.30319\ASP.NETClientFiles\crystalreportviewers14\js\crviewer\crv.js


C:\Inetpub\wwwroot\aspnet_client\system_web\4_0_30319\crystalreportviewers13\js\crviewer


    

  • Alternatively, use a Try / Catch block
    • 

  • This issue is being tracked under ADAPT01496652
    • 








Keywords



   
 KBA , BI-DEV-NET , BI Software Development Kits (SDKs) - .NET or Other , Problem 






Product



  SAP Crystal Reports, developer version for Microsoft Visual Studio