装了两个水晶报表，想彻底删除，不知何解决？急盼

机器上有两个水晶报表的引用 ，调试的时候报如下错误

“CrystalDecisions.CrystalReports.Engine.ReportDocument”同时存在于“c:\WINDOWS\assembly\GAC_MSIL\CrystalDecisions.CrystalReports.Engine.2.3600.0__692fbea5521e1304\CrystalDecisions.CrystalReports.Engine.dll”和“c:\WINDOWS\assembly\GAC\CrystalDecisions.CrystalReports.Engine.0.3300.0__692fbea5521e1304\CrystalDecisions.CrystalReports.Engine.dll”中 C:\Inetpub\wwwroot\YCFC\ysf\Report.aspx.cs 25 9 C:\...\YCFC\ “CrystalDecisio