Member Avatar for gnl74

Dear All,
I am working on an existing web application trying to integrate reports. The application was developed with the 2.0 Framework. I converted it to 3.5 since I could not use the ReportViewer with the 2.0. Trouble I get a lot of errors. What can I do? Does anybody have an idea on how to solve these errors? Thanks!!!
GNL


Error 179 The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' C:\ecrf-2.2\deployed\test_a\ReportRdlcViewer.aspx 12


Error 180 The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\test_a\a52deb33\b2c22986\App_Web_5240vz2x.4.cs


Error 181 The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' C:\ecrf-2.2\deployed\test_a\Report.aspx 14

Error 182 The type 'Microsoft.Reporting.WebForms.LocalReport' exists in both 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\test_a\a52deb33\b2c22986\App_Web_5240vz2x.0.cs

Error 183 The type 'Microsoft.Reporting.WebForms.ReportViewer' exists in both 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\10.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' and 'c:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\9.0.0.0__b03f5f7f11d50a3a\Microsoft.ReportViewer.WebForms.dll' c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\test_a\a52deb33\b2c22986\App_Web_5240vz2x.0.cs

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  • Latest Post Latest Post by gnl74
Member Avatar for Ramesh S

Hi,

Check if the web.config file has references to both 10.0.0.0 and 9.0.0.0 versions of ReportViewer control. If it contains, remove the unwanted version details and try again.

Create a new website/web application, add reference to the appropriate version of ReportViewer control and take a look at the entries that are created in the web.config. Update the same in the web.config of your existing web application.

Member Avatar for gnl74

Hi!

I tried fiddling with references in the web.config : to no avail.

A new web application works fine with reports: the trouble is with the existing one I have to modify.

I am actually thinking of the following solution: create a brand new web application and go from the
first one to the second one through some link with cross site authentication (have to study how it works...)

Edited by gnl74 because: n/a
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